Despite its slimness, How to Price Crafts and Things You Make to Sell is packed with examples and good advice. I sell my fine art pieces at shows and have found this book incredibly helpful.
Chapters 1 and 2 discuss the customers motivation for buying, how to make your craft and art pieces standout from other offerings, how to present your work for maximum appeal, and how to convey the value of your work. The list of ways to increase the perceived value of your work is invaluable.
Chapters 3 and 4 cover how to price your work competitively and profitably, while Chapter 5 goes into detail about pricing unique items.
Charter 6 covers recordkeeping for the customer transaction...bills of sale, description of the piece sold, valuations, etc.
Chapters 7 & 10 go into detail about bookkeeping, calculating profitability, and requirements for business taxes, and so forth.
Chapters 8 & 9 give tips on how to lower the cost of materials and how to set up your workspace for maximum productivity.
If you are new to selling your art and craft work, this book is a great introduction to getting started.