I just finished reading this book, and I have to say that it is head-and-shoulders above every other log home construction book I've read. The illustrations are superb, and the tone of the text is very objective and factual. In contrast to books with the "this is how I've been building log homes for XXX years" attitude, Chambers' approach is "I didn't invent it, but so far this is the best way I've found to do this particular task. If I find somebody else doing it a better way in the future I'll start doing it that way." Chambers not only isn't afraid of not-invented-here ideas, he positively embraces them! There is even a chapter on the structural engineering of log trusses, written by a structural engineer (fancy that).
Chambers also covers the subject comprehensively, from the highest-level ideas (his chapter on settling is fascinating) to the lower-level details (proper chainsaw stance for cutting the lateral groove, for instance).
Let me contrast this a bit with Mackie's "Owner-Built Log Home". Mackie's book is a good read, because he's a terrific wordsmith and he really conveys the pleasure of building your own log home. But his illustrations aren't nearly as clear as Chambers', and he tends to write for an audience that already understands a lot of wood joinery terminology and procedures. "Then we did this, and this, and this," and I'm like, "whoa, did you skip a few steps there?" I often found myself re-reading a page several times because I just couldn't envision what he was doing in my mind's eye. Chambers never leaves you wondering.
I think both books have a place on your bookshelf, but if you really want to learn the most hands-on information in a single book, this is the one.