So, I'll start this review by saying I'm NOT a Scientologyist. I do live in Clearwater, FL which is known as their "Mecca."
I first read this book probably 15+ years ago. I was in my early twenties and curious about what Scientology actually was, what they believed and the main contribution to my curiosity - Dianetics, the 'science' behind the religion that appeared everywhere I could look.
I will say that I'm a Pagan and have been for the larger bulk of my life but raised loosely Methodist.
A New Slant on Life is a book by L Ron Hubbard that is compiled of numerous essays Hubbard wrote covering the underlying principles of his practice over a wide variety of topics like: Is It Possible to Be Happy?, Personal Integrity, Man's Search for His Soul, On Our Efforts for Immortality, 'The Eight Dynamics,' The 'Affinity, Reality and Communication' Triangle providing the components for interpersonal relationships, Handling the Confusions of the Workaday World, Marriage, How to Live with Children, What Is Greatness?, etc.
As you can see from the chapters alone it's a very broad listing of aspects handled in day to day life by everyone. That's always been the appeal of Scientology is that it is 'open to everyone.'
The book itself is actually decent and what doesn't come off as common sense is a lesson learned in delivering a self-help approach to daily living. There is some good information in here but it covers a lot of ground rather quickly and in the most basic of ways, often reading more like stereo instructions than a manual to any dedicated faith-based path.
Many things are simply talked about in general all-encompassing definitions that paints a relatively positive - albeit a strange position to pivot coming away with a "still-searching for answers" sort of 'educated confusion' to the same questions I had coming into the book as I'm left after actually reading it. This is also on purpose to appeal to your curiosity and leave an open door for a visit to your local Mission or Org for more details.
There are also numerous postage -paid advertisers for other free materials handed out by the Church inside the book. Please note - these making materials, while curious and brilliant in their own positioning, are actually covered in further books and are available -widely - for free online. I do not recommend filling out the cards to mail them because this is how you get on their 'mailing list' which is set to be still standing even after your 50 billion year contract is up.
This book is well written but while it speaks to an overall idea of what life should look like it doesn't actually cover any of the information you hear about in the papers or documentaries and that's also for a reason. Those things are the building blocks of Scientology underneath it all...and after having paid more than anyone ever should to be blindly led through enlightenment. But, this review is on the book itself and not Scientology as a whole.
As laid out in this book and other works readily available for purchase, you're given a generalized view in your head of a high functioning society that acts in open communication to its members for the highest good, without crime, war, etc - basically the proverbial 'promised land' here in everyday life. A utopian society as described should be the aims of everyone with or without organized religion. But these are the central themes throughout the rest of the "Basic Books". It all can be easily promised - and somewhat delivered - in applied teachings.
The book ends with another generalization layed out in 'My Philosophy - Ron's personal statement on what motivated his life's work and the quest for Scientology. " It quickly sweeps across the churches 'doctrine' that stands as fact for the overall career and character of Hubbard in who he was and why he created this religion in the first place. Personally, I can't speak to the REAL motives or underlying motivations in writing and collecting what equates to a massive body of knowledge and content by any means but impressive in accomplishing for the given timeline. I don't think Hubbard set out with the conscious effort of doing anyone a disservice or impeding harm of any kind to anyone and, in fact, I think that he most likely started the journey as all writers do, with a great idea in your head and a need to fill in the details along the way. Having written and devoted your time, efforts, your life to this belief system you've created with anything other than good intentions would be the making of a monster. And I don't think he initially intended to fill the shoes he actually did in reality. The truth is we'll never know. No one knows. That's where the belief part of religion meets with the mind and logistics in any application of faith-based living.
I have to say I recommend the book in offering it to those who can go in with an open mind and not get too swept away by the exterior packaging you're given in the Brand of Scientology. The principles outlined in this and other Basic Books by L Ron Hubbard can be followed independently, on your own and without ever stepping foot in a church. However, the reality of what's inside the packaging is something you are forced to entertain in your local Mission or Org while given a highly detailed road map of material and levels of indoctrination that, truthfully, only the highest ranking members will ever lay their hands on and even then, it's after paying millions of dollars to the church in the form of 'donations' for your courses and auditing. This isn't a secret or even a side comment to the church in my mentioning it because from the start it clearly states what the church charges and at what levels and for what classes.
If you want to be a Scientologist you can do it with or without the church - to some degree - in using the information provided in these books and free of charge. But, good luck.
In closing, I still recommend giving it a go if you're interested in Scientology or other Self-Help guru-led movements from Leaders like Tony Robbins. I refuse to say the book isn't worth the time. I think everyone will come away with what they put in to venture it a go and give an alternative point of view a little look see. It's a relatively quick read, written for the comprehension of all ages from youth to adult in age and it does provide a glimpse into the Idea of a brighter future ahead, whether it can actually deliver on those promises, however, only time will tell.