Things You'll Need
Instructions
Inspect the book carefully. Search for any stamp marks, insignias or carvings. Find the copyright information, the ISBN (if applicable) and all information on the author, editor and publisher. This will make research easier.
Photograph the book from the front and back, as well as the sides--especially the spine. Include any lettering, stamps or insignias you found while inspecting the book.
Conduct research online or at a library on any insignias or markings you found. These may indicate authenticity and value. Research the edition of the book and its general history. Research all information you discovered while inspecting the book.
Research appraisers. Once you find a credible appraiser, get his permission to send your photos. Different appraisers have different techniques, so adapting strategies will be important. If an appraiser charges, make sure they run a legitimate business.