- eBookThe Critics of ColumbusRichard Di Giacomo
- eBookThe History Teacher's Joke BookRichard Di Giacomo
- eBookThe History Teacher's Movie GuideRichard Di Giacomo
- eBookCalifornia Travel QuestsRichard Di Giacomo
- eBookTales of TimeRichard Di Giacomo
- eBookAlong the Rivers of FaithRichard Di Giacomo
- eBookThe New Man and the New WorldRichard Di Giacomo
- eBookPutting History to WorkRichard Di Giacomo
- eBookHistorical Gems of the San Francisco Bay AreaRichard Di Giacomo