Because the monetary value of artwork cannot be established without reference to the aesthetic qualities and art historical significance of our subject works, two substantial chapters detail the processes involved in researching and documenting the fine and decorative arts, respectively, and provide annotated bibliographies. Methods for assigning values for art objects are explored, and sources of price data, both in print and online, are identified and described in detail. In recent years, art historical scholarship increasingly has addressed issues related to the history of art and its markets: a chapter on resources for the historian of the art market offers a wide range of sources. Finally, provenance and art law are discussed, with particular reference to their relevance to dealers, collectors, artists and other art market stakeholders.