Zine is a noncommercial, online or homemade (photocopied) independent publication devoted to unconventional and specialized topics produced in small and limited batches.
Yellowbacks were inexpensive paperbacks printed and published in Britain during the later half of the 19th century. Today, they are a highly collectible item!
Between 1400 and 1900, illustrations in books were created using woodcuts. Designs or drawings were engraved on blocks of wood, typically beechwood. Then the remaining areas of wood were carved out, leaving behind only the design.
Foxing refers to the disfiguring small, irregular and sometimes fluorescent reddish-brown spots that form on paper and paper products such as certificates, postage stamps, photographs, old books and currency notes, especially those produced between the 15th and 20th century.
Modern-day vellum paper and historical vellum (made from animal skins) are different things. Read more about it here!