is not what you put in them, but what you have to leave out.
I've written a series of chess books with Tim Onions, the latest of
which will be published next week. But oh, the pain I go through
when we decide to leave out important ideas and examples. Anyhow,
if you're curious about what we might have put in if the books were a
bit longer, we have some free extra
Just in case anyone hasn't seen it before: I forget that it is new and fresh to every generation of chess players.