The sections with sketches and descriptions on how to alter patterns and clothing to fit a specific figure are perhaps my favorites. They will be invaluable to me, I think, as I delve more deeply into the world of refashioning and upcycling used clothes.
I also love the sections on trims and embellishments. The bow on my own camera strap was made using instructions given in the second book.
I also enjoy the charming retro illustrations. I think that if I wasn't interested in keeping the books whole for sewing reference, I might cut out some of them and find a place to hang them on my wall.
Last but not least, some of the text is makes me laugh out loud as I gain perspective on what culture used to be and how differently we think now. For example: "What husband, what son, what man wouldn't enjoy a classic, well-tailored vest made by you? Choose tweed, plaid, wool flannel (a bright color such as red with brass buttons is always a favorite), or linen for daytime wear or spectator sportswear."
If you like to sew, and you find one of these books for a good price at a yard sale or second hand store, I highly recommend that you snap it up. While some of the fashion advice and language may be outdated, many of the techniques certainly are not. In my mind, at least, these books are a good investment.