Here are some useful books (listed by date of publication). For your convenience, you can click on the book cover to go to the ordering page on Amazon.
BOOKS ABOUT KETAMINE
Journeys into the Bright World (1978)
by Marcia Moore & Howard Alltounian
Ketamine: Dreams and Realities (2001)
by Karl Jansen
Ketamine for depression: What psychologists need to know (2014)
by Raquel Bennett
Ketamine for Depression (2015)
by Stephen Hyde
Ketamine: Use and Abuse (2015)
by David Yew (editor)
The Ketamine Papers (2016)
by Phil Wolfson & Glen Hartelius (editors)
Ketamine for Treatment-Resistant Depression: The First Decade of Progress (2016)
by Sanjay Mathew & Carlos Zarate (editors)
Handbook of Medical Hallucinogens (2021)
by Charles Grob & Jim Grigsby (editors)
Chapter 17: Ketamine
OTHER USEFUL BOOKS
The Ethics of Caring (2017)
by Kylea Taylor
Consciousness Medicine (2019)
by Francoise Bourzat & Kristina Hunter