Check out my Amazon wishlist (well, I use it as a list of books I'm going to purchase). Which books should I add to that list? I'm specifically looking for more OOP related and web services (SOAP, XML-RPC, etc) related books
Right now I'm only using PHP, but I've considered learning Java and C++ sometime too (don't know in which order yet). I need some more knowledge on how to construct solid object oriented applications
Did I miss any essential books?