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If you're not making any money from selling your books, why not make them available for free? They will reach a much wider audience.

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(1) People do not value free stuff.

(2) To some people (like me), a few 100 EUR per month can make a huge difference.

I do value free stuff, but I also value you as an author. Happy to pay for my PDFs of your work.

Good to hear, thank you!

And I agree, the generalization above was too broad -- I also value free stuff!

But as a generalization I think it holds true. On average, free stuff is not valued very highly by the general public. Or rather, a person selected at random will not perceive much of any value is something given away for free.

Bought a copy, into chapter 2,good read so far, font is readable too as far as I can tell

I'll echo GeoffKnauth, I'm glad to have paid you for several of your books. I'm looking forward to starting the introduction to Klong book, as I find array languages fascinating but there's a regrettable lack of beginner materials for many.

Incidentally, the 6x9 PDF size is great on a Kindle Oasis, the print is a bit small but it works. This is in contrast to most other PDF ebooks, which I would have great difficulty reading on the Kindle, so thank you also for that!

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