When Peter Klaas published Tarantulas in the Vivarium: Habits, Husbandry, and Breeding in 2001, the arachnoculture hobby was in a state of rapid transition. While keepers were moving away from “trial and error,” there was a desperate need for a consolidated, scientifically grounded resource.

Klaas, a respected German arachnologist and keeper, filled that void with a work that remains a foundational text for serious hobbyists and professional breeders alike.