Study Guides and Reference Books 

Board Review in Preventive Medicine and Public Health, Gregory Schwaid, DO, MPH (paperback)

Occupational Medicine Board Essentials, Les Folio, DO, MPH (ebook, updated and digitized by Mimms J. Mabee, DO, MPH, FAOCOPM)

Department of Transportation Medical Reference for Examiners, Mimms J Mabee, DO, MPH, FAOCOPM (e-book)