Welcome to forum. I don't place a lot of faith in fishing books. There's some good ones and there are some that seem like they were written by someone who doesn't fish but knows someone who knows someone that does.
You are probably going to get better information from here that most books. Where are you planning on going, what time of year and what are you planning to fish for? Once we get that narrowed down I'm sure the forum members here can provide you with most of what you are looking to find out.