When was the first Book Fair? Most likely in England. In America, the start of Book Fairs as we know them was in the 1940s. What were the events called? Probably just Book Fair, but certainly, it was not named “Antiquarian Book Print & Paper Fair”. What type of material do you think was offered? Books of course, but maps, postcards, "ephemera", it all came along little by little as collectors discovered more than books to enjoy.
Walter Larsen, from whom Nancy Johnson Events acquired the San Francisco Antiquarian Book Print & Paper Fair®, was ahead of the industry when he added the words PRINT and PAPER. Many Book Fairs have other words besides BOOKS in their titles, or if they don’t, the tag line of Ephemera, Photography or Posters are in their promotions.