- The Southwest: Colorado, New Mexico, Texas (Lets Discover the States)
- Territories and Possessions: Puerto Rico, U. S. Virgin Islands, Guam, American Samoa, Wake, Midway and Other Islands, Micronesia (Discovering America)
- South Central: Arkansas, Kansas, Louisiana, Missouri, Oklahoma (State Reports)
- Eastern Great Lakes: Indiana, Michigan, Ohio (State studies)
- The West: Arizona, Nevada, Utah (State Studies)
- Witi Ihimaera
- Robert Olmstead
- Criswell Freeman
- Paul Karr
- Maurice Isserman
- Lawrence Buell
- Bernie Sanders
- Peter Porter
- Thomas G. Aylesworth
- Irving H. Bartlett
- William Romoser
- Barbara Knox
- Richard J. Elzinga
- Richard Merrill
- W.D. Wetherell
- Robert Cahill
- Neal R. Peirce
- David Dobbs
- Humphrey Brown
- Huck Gutman