Many of these books have informed my work. I have categorized them as best I can for ease of reference though some of them could be listed in multiple categories. I have chosen to boycott the online bookseller Amazon due to ethical concerns. Each book is linked to instead to a bookseller that has more ethical business policies, treats their employees with care and respect, and uses either recyclable and/or minimal packaging. You may wish to research other alternative booksellers for the best prices. Occasionally I add new titles so you might consider checking back here from time to time.