In his 7th book, Stewart delivers an exegesis on Buddhism, using The Dhammapada ("Path to Eternal Truth") which are the verbatim words or declarations of Gautama Siddhartha Buddha, himself. Any doctrine other than this and the books of his rules (codes of conduct), are blasphemous and should be shunned for this reason.
Consequently, if you are new to Buddhism, you will receive the original, verbatim declarations of Gautama Buddha which are the foundation of his undefiled Theravada Buddhism which means "School of the Elders." I wish you the best in your quest to attain Enlightenment – Transcendence.