Although the Blue Book is the avid doll collectors' favorite price guide, it contains numerous categories that have not been updated for quite a number of years. China, parian, papier mache, and wooden, some of the earliest dolls in existence, have been gaining in popularity for several years now and the market prices, both at auction and online have been rising considerably. The Blue Book has not caught up with this trend.
Also, it would be extremely helpful if there were a comprehensive section that described the methods used in compiling the information as well as the sources of this information. Some of the prices are so far off the mark in actual market prices realized, that it makes the professional wonder if the numbers are merely picked out of blue sky.
The book is well structured and is the easiest to use on a daily basis, of all the price guides, however, serious updating and a description of the price compilation process, would improve it immensely.