I have one by Greg Green, The Cannabis Breeder's Bible, it really helped fill in some of the blanks about the topics on breeding, seeds, and things I had found in the other books I've read thus far. In that book he does mention that he wrote that book because of something he said in his previous book which inspired so many questions he wrote a second book to cover it for everyone. In there he makes mention of this because he refers to things he says he wrote in the previous book, and if you wanted to understand the whole topic you'd have to read it too.
While I have heard quite a few people recommend Jorge Cervantes, I didn't care for in his bio where he admits he secretly ran through cannabis grows and circles under an alias for so many years to hide his real identity. In a place where people put everything on the line in big grows in some countries, he is running around lying about his identity like a snitch. As if that didn't impress me about him, I would then watch a video of his on YouTube where he says you can use H202 on moldy bud by soaking it with water to kill it off and then dry and smoke the bud, yet in another video he says there is nothing you can do and should throw it away. He contradicts himself in his writings as well according to some people on Amazon when reviewing people's comments on his books. I even saw one person say they couldn't read the book because of spelling and grammar errors as it annoyed them so much. I've admittedly never read his work myself, but given all of that I've not really wanted to either.