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Mr Penumbra's 24-Hour Bookstore
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Mr Penumbra's 24-Hour Bookstore (Mr. Penumbra's 24-Hour Bookstore #1)

3.77 of 5 stars 3.77  ·  rating details  ·  68,554 ratings  ·  12,941 reviews
A charming and hilarious adventure that has it all: secret societies, unbreakable codes, underground lairs, cutting-edge technology, the googleplex…and lots of books!

Clay Jannon, twenty-six and unemployed, reads books about vampire policemen and teenage wizards. Familiar, predictable books. Books that fit neatly into a section at the bookstore.

But he is about to encounter
Paperback, 288 pages
Published September 26th 2012 by Text Publishing (Aust) (first published August 2012)
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Emily Mackmiller From what I got, the notches were on there to represent a number, and then the letters each had a numeric value. From there he was able to figure out…moreFrom what I got, the notches were on there to represent a number, and then the letters each had a numeric value. From there he was able to figure out the pattern/code. I think that was what happened, but you're right, it wasn't very clear. (less)
Jmkenrick Not sure about the most accurate...but Clay being at the North Beach bookstore, and then 20 minutes later being on a train to Mt View definitely threw…moreNot sure about the most accurate...but Clay being at the North Beach bookstore, and then 20 minutes later being on a train to Mt View definitely threw me off. (less)

Community Reviews

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Mr. Penumbra's 24-Hour Bookstore is one of those books that appears to have the perfect blend of ingredients for something brilliant. It's a mystery/adventure set in San Francisco, revolving around an out-of-work marketeer and web designer who takes a job as a clerk at the odd little bookshop of the title. He soon realises that there is more to Mr. Penumbra's than meets the eye, and together with a group of his friends, he embarks on a mission to get to the bottom of the shop's real purpose. Wha ...more
suuuuper fun!

this book is going to sell like gangbusters when it comes out in october. mostly because each and every one of you reading this review are going out and getting yourselves a copy. this is a command.

you like books, right? yes, you do, because you are a member of goodreads. and this book is about books! and puzzles! and adventure! there's not a whole lot that's better than is shades of Salamander and The Grand Complication: A Novel and If on a Winter's Night a Traveler and T
I am so happy that we happened to be walking past the booth were Robin Sloan was signing, and someone was holding up a copy of the attractive ARC trying to lure people onto the line (which I now see the cover has been added to the book on goodreads, the book looks better than the picture suggests). This is good and I'm thinking if the world has any fairness at all this will be a fairly good selling book this fall.

In a perfect world this would go blasting up the sales charts and topple the Fifty
Meh - 1.5 stars because the plot was interesting enough that I finished the book and there were some funny moments. While Mr. Sloan is imaginative and quick witted it does not make up for poor writing and boring characters. The book is just bad first person narrative. This would be an acceptable as a Syfy Saturday movie but not for a novel.For example "It's early in the morning. We came straight from the airport. Neel visits Manhattan all the time for business and I used to take the train down f ...more
Forgive me, people, this review will be all gushing!

This book charmed me from the very beginning -- with fresh internal monologues, from Clay Jannon, a recent unemployed young man, who just lost his first job out of art school... Then he walks into a bookstore (OMG BOOKSTORE!!) and he climbs the ladder, and I'm in love.

How could I not?

This book is a love letter for books, bibliophiles, but also for technology. We know that the world of books, publishings, and reading have changed in the recen
I have just lost the will to live. Have spent two hours writing a review of this brilliant book and then saved it but somehow Goodreads managed to lose it . Will probably kill someone if i sit here any longer so am off to the gym to do something sweaty, noisy and pointless and maybe will try again later. Very f***ing annoyed. Bye for now....................its a brilliant book by the way. I hate the 21st Century sometimes

'Your life must be an open city, with all sorts of ways to wander in'

'All t
Richard Reviles Censorship Always in All Ways
Rating: 3.9* of five

The Book Description: A gleeful and exhilarating tale of global conspiracy, complex code-breaking, high-tech data visualization, young love, rollicking adventure, and the secret to eternal life—mostly set in a hole-in-the-wall San Francisco bookstore

The Great Recession has shuffled Clay Jannon out of his life as a San Francisco Web-design drone—and serendipity, sheer curiosity, and the ability to climb a ladder like a monkey has landed him a new gig working the night shift a
Authors are magicians. I was in the early pages of Mr. Penumbra when I realized that Sloan was sneaking in a major chain of events in only a few short paragraphs with the intention of moving the story to where he needed it. It was the authorial equivalent of "look, nothing up my sleeve" in preparation of a hat trick. Rather than irritation from this momentary flap of curtain or glimpse of rabbit ear, I was rather captivated.

Thinking back on books I've loved or hated, it occurs to me that in that
“Walking the stacks in a library, running your finger down the spines — it’s hard not to feel the presence of sleeping spirits.”

If you’re wanting to read a book about books, this is the novel for you. I had so much fun with this that I didn’t want it to come to an end. I could actually feel myself going into mourning as I came to the last chapter. I felt like I was about to leave people that I liked and wanted badly to keep in touch with.

Clay Jannon is a super-bright and young art student who h
HOLY MOLY, BATMAN, EVERYONE SHOULD READ THIS. I am actually so excited to write this review... I HAVE SO MANY THINGS TO SAY!

Because I have so many thoughts, let's do this bullet-point style.

- This story was so positive and mood-uplifting! Geez. I never felt that horrible dread you feel sometimes when you're reading: that loss of faith with the author where you ask the horrible question "Is the author going to screw this all up?" All throughout reading the book there were moments where I felt the
This is not a review, it's a love letter.

I adored this book. Why? It had a likeable narrator in Clay Jannon, a mysterious bookshop, romance, puzzles, secret societies, a San Francisco locale (with side trips to New York), and a sly sense of humor. The theme of Old Knowledge (books) vs. Internet knowledge gave the author the chance to slip in scenes at Google, a museum dedicated to knitting overrun by first graders, information about fonts, a character who made his fortune creating realistic 3-D
Well, I can't say I've been charmed by a book more in a while, and jealous I didn't write it. This is a totally hipster book that rings all my bells, I feel like it sort of summarizes the zeitgeist of our internet generation, the gap between old and new.

Basically the main character, Clay, is unemployed tech guy, gets a job in a run-down bookstore that has a mysterious agenda that he can't help but get roped into. I'm a sucker for secret societies, and there's a touch of Amelie whimsey that is ri
Mr. Penumbra's 24-Hour Bookstore is the debut novel by Robin Sloan, and a publishing sensation - it was Amazon's Best Book of the Month in October 2012, and received a lot of attention and praise from reviewers, authors and readers. No wonder - who wouldn't want a 24-hour book store?

The novel aspires to be classified as a "literary mystery", or an "intelligent thriller" - both labels are somewhat insulting by suggesting that mysteries and thrillers are by default a lower tier of literature, and
Ugh, not recommended. I considered stopping reading several times, but it was such a quick read that I just sped on through.

The novel made a dramatization of numerous topics that I do feel like I have a bit of expertise around - San Francisco, Googlers, data visualization, encryption - and the book's representation came off as a shallow, borderline painful overt dramatization. It seemed ridiculous. I know little of the author's background, but the novel itself gave the impression of too strong a
Initial thoughts:

1. Loved Clay. He is wonderfully funny, and geeky. His journey throughout the story was fantastic.
2. Loved the combination of new and traditional, young and old. Seeing ideas, and characters that are different and opposite come together.
3. Lot's of wonderfully geeky elements. Design, typography, technology, books, and other very nerdy things. It was AMAZING.
4. I really liked and appreciated how the characters and the story was grounded in reality. There are a lot of elements tha
Melissa Rochelle
August 2012: (First, I never read the short story because by the time I discovered it I already knew it was a novel so I didn't want to ruin anything for know, just in case. Now that I've finished the book, I'll read the story.)

The book -- AMAZING. I loved it. Really. It's chock-full of bibliophile goodness. This is up there with Ready Player One geeky goodness.

Clay finds himself unemployed (like many these days) and one day stumbles into a quirky bookstore looking for a late-night
4.5 Stars

Oh, so much of this book is exactly what I wanted.

There was first an old and dusty bookstore.

With an old and whimsical caretaker.

And a prophecy surrounding a secret cult of black robe wearing bibliophiles, written in code form.

Did I mention that this secret cult meets in an underground library? The entrance is a fricken' swiveling bookcase!

Hell, even the characters have interesting names such as Kat Potente, Corvina, and Ajax Penumbra.

There's even a bit about google and coding which re

I didn't read any reviews or even the synopsis for this - I bought it on a whim because I liked the cover and title. That'll teach me to be wild and spontaneous. No more bonkers book buying for me, I've learnt my lesson.

I thought Mr Penumbra's 24-Hour Bookstore would be a charming, quaint and lovely tale about an old bookshop that's open all night and visited by bookworms, lonely night-owls and other oddball characters. I thought a jobless-down-on-their-luck-underdog type character woul
[I was sent an arc by FSG.]

I love this book. It's like sitting in the sunlight drinking cold white wine while a sexy person rubs your feet with cinnamon oil and another sexy person messes tunefully acoustic guitar. And while this is happening, you realise: damn, I look good.

Why do I love it? Well, it's a good-hearted, optimistic book about friendship and being alive and the lure of the mysterious. It's a book which shows you Google the way Google sees itself, and bookshops the way bookshops ough
A charming, quietly amusing book, Mr. Penumbra's 24-Hour Bookstore is the literary equivalent of a congratulatory pat on the back in recognition of loving books. "Oh, you read? Well, good for you!" It's a book designed to make the bibliophile break out into a near terminal case of the warm fuzzies, overcome with a sudden desire to break out a blanket, brew a pot of tea or coffee, and settle into a comfortable chair for a day of hardcore reading until--oh, wait!--I'm already doing all of that! Si ...more
**disclaimer: i got this book through the GoodReads "First Reads" giveaway program. nonetheless, this is my true and honest opinion of the novel!**

clay jannon, the protagonist and narrator of the novel is a bright young art school graduate who takes a job at mr. penumbra's 24-hour bookstore after losing his job as a web designer, only to stumble upon the mysteries that the narrow building contains within its walls, and within the pages of what he calls "the way-back list". there's no acknowledge
I developed a deep fondness for this book before I even opened it because when I picked it up and turned out the light, I discovered the cover is glow-in-the-dark.

The twenty-something protagonist of the story, Clay, is an out-of-work web designer who stumbles into a job running the graveyard shift of the titular bookstore. It's not long before Clay learns that the books on the towering shelves are very eccentric, and the clientele who read them even more so. As the story progresses and Clay use

This is a love story. About books. Robin Sloan does an incredible job of cramming a lot into a relatively short novel. While I must admit the whole computer/google thing went right over my head, it was still fascinating to read about it. Every optical eigenvalue is being inveigled. What the heck? I'm also not into role-playing games (although I"m addicted to "The Guild"), but it was so much fun to watch Clay and his friends get the chance to play out their real life quest. There's loads to learn
Clay Jannon is a 26 year old who finds himself looking for a new job thanks to the economic meltdown. He finds it at Mr Penumbra’s 24-Hour Bookstore, working the late shift. But Clay soon finds out that there is more to this bookstore than the question of how it is possible it remains in business. Mr Penumbra’s 24-Hour Bookstore will take you on a literary adventure of complex codes and a global conspiracy.

This will be a hard book to review without giving away any spoilers but I will try my best
Lisa Christen
This is a must read!! It is fun. It is happy. It is silly. It is part fantasy (kind of). It is part Google-computer-program-wow. It is about love and friendship. It is about books. It is about code breaking. It is about high-tech data stuff. It is about love, adventure, the secret to eternal life, and it is all pretty much set in a skinny bookstore set next door to a strip club in San Francisco. Oh, and there are some guys in the story that wear black capes.

Clay Jannon is our story teller. He is
I pushed the bookstore's glass door. It made a bell tinkle brightly up above and I stepped slowly through. I did not realize at the time what an important threshold I had just crossed.

Inside: imagine the shape and volume of a normal bookstore turned up on its side. This place was absurdly narrow and dizzyingly tall, and the shelves went all the way up - three stories of books, maybe more.

Zing! went the strings of my heart!

Okay, I wasn't completely enamored with the twenty-something ca
Lois Bujold
Oct 15, 2013 Lois Bujold rated it 5 of 5 stars  ·  review of another edition
Recommends it for: pretty much anyone
Recommended to Lois by: various internet reviews

Good first-person voice, and through it, characterization. The narrator/protagonist has a head I enjoyed spending time in.

This is a book both from the 21st century, and that delights in the 21st century, an incredibly welcome change from all the grimdark political dystopias out there at present.

They sly explorations of the differences between a map and a territory, analog and digital, reality and its representations, (not to mention the past, the present, and the future, tho' I am reminded that
It's been a long, long time since a book has kept me up past the time I wanted to crash, but Robin Sloan did so unbelievably well. Indeed having only started the book yesterday I expected to finish today or tomorrow, but the story, characters, and plot were so remarkable that I just could not put it down.

First off let me say this is a book for book lovers. Secondly this is a book for tech lovers, and unless you have a solid balance of the two, it may be hard to truly enjoy both aspects. Instead
A wonderfully entertaining read. Any book that features bookstores,the Google campus, 3D modeling software discussions, references Aldus Manutius, a dungeons and dragon fantasy book series and an ancient conspiracy involving books has my immediate attention. The trip to the Google campus in Mountain View and a visit to the Google Book Scanner add more candy to the mix. Like all quest novels there's esoteric names and labels. One of my favorites is the Gerritszoon font (standard on all Macs accor ...more
It's hard to write a review for this book.

It's not hard to rate it. I knew it's going to get a 5-star from me early from the beginning. The review is difficult since it's not a thriller, nor plot-driven, nor has poetic passages, nor it's realistic, nor a fantasy, nor dystopian...and it's not about love. Those people who knows me know how I love books about love.

One the other hand, I also love books about books and reading. Nothing also pleases me more than to read a book and learn something tang
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Robin Sloan grew up near Detroit and now splits his time between San Francisco and the internet. He graduated from Michigan State with a degree in economics and, from 2002 to 2012, worked at Poynter, Current TV, and Twitter. Mr. Penumbra’s 24-Hour Bookstore is his first novel. You can learn more at and follow along at @robinsloan.
More about Robin Sloan...
Ajax Penumbra 1969 Annabel Scheme The Writer and the Witch New Liberal Arts The Wrong Plane

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“Walking the stacks in a library, dragging your fingers across the spines -- it's hard not to feel the presence of sleeping spirits.” 329 likes
“After that, the book will fade, the way all books fade in your mind. But I hope you will remember this:
A man walking fast down a dark lonely street. Quick steps and hard breathing, all wonder and need. A bell above a door and the tinkle it makes. A clerk and a ladder and warm golden light, and then: the right book exactly, at exactly the right time.”
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