Copies of each census form, directions to enumerators, and summaries of the changes from census to census. Helps you determine whether the topic you need was even asked in a way useful to you.

Comprehensive guide that describes all published census titles plus describes materials originally planned for publication that were never done.

A "general guide to the thousands of published census indexes currently available in print and online [...] Arranged chronologically by year, geographically, and by general topics (this section includes indexes that focus on ethnic groups as well as indexes to current and former military personnel and their families), The American Census Handbook includes information on federal, state, county and town census records."

A guide to the U.S. Census Bureau's 1790-1890 decennial census volumes.

A guide to the U.S. Census Bureau's 1900-1940 decennial census volumes.

A guide to the U.S. Census Bureau's 1950-1980 decennial census volumes.

Statistical reference and guide to over 250 statistical publications and sources from government and private organizations. Ceased publication 2012.