Thousands of books on magic have been printed. I've heard it said that there's more books on magic than any other single subject but I really doubt that is true. However, it does tell you how many there are, that someone would even think that.
That being said -
I am assuming you're fairly new since you've only mentioned three books and that's just the impression I get. For new folks I always recommend the same books:
Mark Wilson's Complete Course in Magic - you can find this all over the place for around 15-25 USD.
Bobo's Modern Coin Magic - 8-15 USD is normal
You already have RRTCM, that's the other one I usually recommend. Following that with Expert Card Technique by the same authors is quite a lot and you probably wouldn't really need any more after that, but you'll keep wanting to learn I assure you.
I will also recommend:
Maximum Entertainment 2.0 by Ken Weber - recently released updated version. I read the first one and it's excellent. This is a book on how to perform well - no tricks, just performance help.
Scripting Magic by Pete McCabe - you can get a nice box set of both volumes, or just vol 1 will be helpful, too.
Alchemical Tools by Paul Brook - this one has some tricks in it, but the real value is Paul's thinking and construction of effects
Showmanship for the Magician by Henning Nelms - general performance advice. When I read this it felt like someone had taken all the jangled thoughts in my head and put them into a codified, logical order.
That's a pretty good start, I'd say.