This Resource Letter provides an introduction to the literature on the history of physics. Because of the overwhelming quantity of publications, the emphasis is on works covering broad topics and historical periods rather than on monographs dealing with special subjects or individual physicists, and on recent reference works that facilitate retrieval of more specialized information. The letter E after an item indicates elementary level or material of general interest to persons becoming informed in the field. The letter I, for intermediate level, indicates material of somewhat more specialized nature; and the letter A indicates rather specialized or advanced material. An asterisk (*) indicates those articles to be included in an accompanying Reprint Book.