If you are talking about Quilts! Quilts! Quilts! The Complete Guide to Quiltmaking by Diana McClun and Laura Nownes, then yes, the seam allowances are included in this book. Reading through each pattern, it clearly states if there are templates to use (they are in the back of the book, with the seam allowances on the template) or the blocks/patterns state the sizes of strips or squares, etc. to cut, and those include the 1/2" seam allowance. Possible there is something in there that missed the seam allowance, but I didn't find any.
I found this book very thorough and it has a ton of info on learning blocks and designing and measurements, etc. etc.
This is one of the first books I picked up and learned more precise directions from.
Have fun!