A Guide To Dolls! Doll guides are large books for doll collectors, used to help them tell one doll from another. They generally have large colour photos of each doll, together with price information. Thanks to the popularity of doll collecting, doll guides sell surprisingly well, even though they are often large, thick, expensive books. They are generally used mainly by professional collectors as tools for identification and valuation. Because it would be pretty much impossible to fit every doll ever made into one book or even a series of books, each book tends to concentrate on a particular decade, or manufacturer, or even one doll (Barbie, for example).