The content of this book is beyond reproach - good, detailed solid technical info. That's why I bought it. It's a bit beyond me as a geologist but I won't outgrow its content and that suits me fine. I was disappointed by the publication quality though. I knew it was a paperback, but it seems a particularly flimsy paperboard, and for a book of this size and density, it really needs a hardback or a stiffer, tougher paperback cover. This is a working book which might end up in a field camp, and for US$70, I would appreciate a hardback. More importantly, the text quality is poor, as are the photos. I compared it to the original (which our office has a copy of) and it seems they have scanned the original publication and digitally printed it. The text has an annoying blur, just like photocopies, and the images (never the best in the original) are furthur degraded and contrasty.
A for content, C for effort. B overall.