ICT2, the paperback!

So here it is, available from today. As with the other Big Red Logic Books, to keep the cost minimal, it is an Amazon-only print-on-demand book, ISBN-10 ‏: ‎ 1068346701. And, as with the other Big Red Logic Books, you can still download the latest PDF for free from the categories page.

My apologies again for the confusing history of earlier versions. As I said before, I kept changing my mind about such major issues as one book versus two, and the ordering of Parts II and III. And then the first edition of Introducing Category Theory was rather rushed out last summer, in case heart surgery didn’t have a good outcome. But I hope this second edition will now be reasonably stable.

As I say at the very end, quoting Louise Glück, “Reading what I have just written, I now believe I stopped precipitously, so that my story seems to have been slightly distorted, . . .”. But I certainly have no plans to add to the book, which has already become ridiculously long: it goes far enough to do the promised job of introducing some major themes and so make some excellent standard texts that bit more accessible. However, I’ll no doubt very occasionally update the text when I find typos or thinkos — or when I can’t resist tinkering with sentences to get them to read more smoothly. So do let me know about any errors in the current version, however small.

Meanwhile, enjoy, as they say! And if you do find ICT2 helpful, it would be a kindness to help spread the word by leaving a mini-review or even just a rating on Amazon.

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Published on June 26, 2025 06:01
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