I got the book as a present from DD, probably because she fancied having one or more of the patterns made up. The first section covers internal pocket types, uses for zips, handles/straps etc. Specific dimensions aren't given at this point but instructions how to calculate dimensions for any size of bag are given. The second section covers patterns for a variety of bags and full size patterns are included where necessary. I also have the Lisa Lam book, but this one seems better organised with all the techniques in a separate section rather than scattered throughout the book as in the Lisa lam one. Personally, I like the book as I don't often follow patterns slavishly rather I harvest ideas and do my own thing. I don't have a Facebook account, (and won't) so can't compare.