"I really wanted to add books on signal processing, RF, linear algebra, program trading, and compression, but I thought (a) it would sound self-aggrandizing and

"I really wanted to add books on signal processing, RF, linear algebra, program trading, and compression, but I thought (a) it would sound self-aggrandizing and (b) there's no end to the domain-specific books I might inevitably end up adding." You probably should add these anyway! I for one would find it useful.