It's harder to tell how long an ebook is than a paper book and harder to know where you are in it from the feeling of how many pages are gripped in each hand. This is a downside of ebooks for me--harder to get an automatic sense of the geography of the book, where I am in it, where interesting things I read were located, where to flip to in order to check something.

But I think there's a silver lining to the length being so hard to see. I suspect it will lead to more authors tailoring their book length to how best to express the content rather than to the market expectations of the physical size of a "book".

Yep, exactly. I prefer print for books I intend to refer to often. (I use createspace to turn the ebook to print on demand. With Softcover & LaTeX, you can get print-quality PDFs, best of both worlds.)

Focusing on the ebook version first helps you keep the content to the right (best-fitting) length.

What book? I'm on the lookout for a good math book.

Kalid has a whole pile of good stuff at:

https://betterexplained.com/

Thanks Jacques :)

Math, Better Explained

https://www.amazon.com/Math-Better-Explained-Unlock-Intuitio...

Check out a few articles on https://betterexplained.com/cheatsheet and see if they fit your style.

Oh Kalid it's you! I haven't bought your book (and I'll remediate to that right now), but I've followed all your posts, they're fantastic.

Go buy this guy's book :)

Thanks Jerome =).

Thanks!

Just to throw in a plug:

'The Pleasures of Counting' is one of the best math books you can get your hands on.