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Comment by j2kun | Hacker News Reader

Oh hey that's my book. Feels great to see someone getting a lot of value from it :)

For those who liked my book, or want a different angle, or if you're looking for inspiration into why math is interesting and useful, I'm in the (slow) process of writing another book, called "Practical Math for Programmers." It's more of a broad sample of interesting, short programs that use math, with lots of references. Sort of like "Programming Gems" books

Sign up for the mailing list here if you're interested in getting updates: https://jeremykun.us11.list-manage.com/subscribe?u=99aa071e9...

And some more notes on the process and ideas behind this book: https://buttondown.email/j2kun/archive/a-week-of-book-writin...

I just read the first chapter and wanted to say well done, this is great! This seems to exemplify the maxim that if you really understand something you can explain it clearly to a layman. I am that layman and I learnt a few things today! I look forward to taking a deep dive. :)

What's are the math prerequisites for the book?

Hi, is there a Kindle edition? I can only find an option to purchase a PDF eBook on your site (“pay what you like”, which is great). This is not to say I mistrust your site, but I only enter credit card data into a very small number of sites.

I'm not the author but the purchase of the book is through Gumroad which is a fairly popular way to purchase independently published books

Thanks, I’ll check it out.

Kindle sadly does not yet support books with extensive math typesetting.

Have you written anything how the PWYW method has gone for you?

Not that specifically. I switched from standard to PWYW after a year of sales and I felt I had made enough and wanted it to be open. I still get decent sales, but the majority of income was always from print books which are not PWYW

I personally appreciate this approach, I tend to do a first pass read on ebooks and if I find it of high value and the subject is not temporal (e.g learn Flash development). I always purchase the physical book for my library. I don't mind paying twice, if I have some confidence that the material will be of value, but it does cause me to pass on some texts that I may have found worth buying the physical book had I not passed on the ebook.

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