That explains why the entire market for depth content at a higher price has basically collapsed… what a shitty deal. Want to charge more than $10… that’s a pretty nice book you have there… shame if something happened to your royalties…”
I do understand that a shorter book might, and most likely does unless one has spent years thinking this way, take just as much or more effort than a longer book.
As @quickthrower2 mentioned, the email list. I like that, but unless I really want to follow something, I won't do email. What I am a sucker for is a cheat sheet or some infographic looking poster.
What I won't buy though are the first 3-4 chapters of the book to be met with the "insert card for more".