As a follow up to this post, I own "Design of Wood Structures" by Donald Breyer, which I think is a great reference book for general wood design. I recently received a flyer in the mail advertising a discounted copy of the 6th edition of the Timber Construction Manual by AITC. I'm curious whether it is worth getting this book too? Does anyone have opinions? I don't do that much wood design, but like the idea of having good reference books in my personal library. If I own the Breyer book, is it worth getting the TCM too?