ephemera: How did you become interested in collectible children's books?

Jones: I grew up in a house with a mix of old and new books (my co-author is my mother Diane Jones). These days, my interests tend towards the highly illustrated books of early 20th-century and the fantasy and science fiction of the mid-20th century.

For the rest of this interview, including the biggest challenge in writing an Encyclopedia, see Ephemera.