With Grant Geissman, Bernewitz is the co-author of Tales of Terror! The EC Companion (Gemstone Publishing/Fantagraphics Books, 2000).
Bernewitz compiled the original edition of The Complete EC Checklist (1955).
Before retiring Mr von Bernewitz spent a number of years employed by HBO in their archives where he was charged with identifying what was on all the 1" masters and additional archival materials which were mislabeled over many years.