[shivawu]

Thanks for replying!

Another question is, what motivated you to start this effort in the first place? And why do you think it's useful. I haven't read the book, so not really sure

[DVassallo]

Mostly an experiment. I wanted to get a concrete idea about whether it's possible to make a living producing digital products like these (and whether I could do it :)). I don't have that answer yet (too early), but now I have some evidence that something like this can sell.