Encyclopedia of Religious Rites, Rituals, and Festivals by 
Encyclopedia of Religion, Communication, and Media by 
Encyclopedia of Women and Religion in North America by 
The Routledge Dictionary of Gods and Goddesses, Devils and Demons by 
Who's Who in Classical Mythology by 
The Oxford Companion to Philosophy by 
The Concise Encyclopedia of Western Philosophy by 
Key Concepts in Eastern Philosophy by 
Islamic Philosophy A-Z by 
Philosophy of Science A-Z by 
The Oxford Dictionary of Philosophy by 
Buddhism : A Very Short Introduction by 
Judaism : A Very Short Introduction by 
Islam : A Very Short Introduction by 
Hinduism : A Very Short Introduction by 