I wouldn't call myself a Dawkins disciple so I am not pushing it because it was written by him; I am pushing it because the book is truly great from a science perspective. Give his book a chance, it is written simply, he goes through tremendous lengths to explain terminology and really it the best book to read in order to gather an understanding of the subject. After reading his book (if you want more) I would then use his book as a guide and find texts books on genetics, biochemistry, biological physics and others, to further your understanding. What I know has come from years of studying text books (I am finishing my PhD in plant physiology) and Dawkins’s book would have made it much simpler if I would have started there and then went on to the texts.

You could also read Darwin in you haven’t.