I have Greg's book and it was a good read. If you want some alternative reading material check out signal herps book, I think it's available for $10 on his website or something affordable. I have yet to purchase it but I have heard it's great and takes a different stance than what The Complete Chondro states. I don’t believe it professionally printed or anything, but is I plan on picking it up before I decide on taking the plunge into a new species.