The books mentioned by Pavel and Poliquin are both very good and I would recommend both of them to further your knowledge.
What you will find when reading most books on training is the authors theories. This is particularly true with Charles Poliquin. It is presented as science but in real terms science is often based on hypothesis that are yet to be actually proven. That doesn't mean these theories are wrong it just means that they may not be totally correct.
The MAX Muscle Plan by Brad Schoenfield.
This is another book that you will get a lot from .
The great thing about this book is Brad Schoenfield is one of the leading experts on strength and hypertrophy, has gained a PHD in this field and actually bases his work on the large volume of scientific research available. Pretty much everything he says will be evidence based.
Although the book is science based it is presented in a way that is very easy to read. It is nothing like reading an actual science training book with graphs and physics formula like Siff, Zatsiorski & Kraemer etc...none of that here.
Actually this book is very straight forward and I would imagine a trainer at any level could easily follow it and learn a lot along the way.
As the name suggest the book does have a Muscle Plan which is periodised and broken down into cycles and blocks.
Even if you don't follow the plan you will learn a lot if you can understand why he breaks training down in this manner.
You can pick books up like this as E books for around $15 - $20.