Secret Science Behind Miracles deals with the discovery of an ancient and secret system of workable magic, used by the native magicians of Polynesia and North Africa. Max Freedom Long expounds that anyone can learn to use the ancient and secret system of workable magic and in the process they can change the world. Secret Sciences Behind Miracles is a work that can best be classified in the following genres; religion & spirituality, occult & paranormal, magic studies, new thought, and new age & spirituality. Max Freedom Long was an American novelist and New Age author. In 1917, a year after graduating from Los Angeles State Normal School with an Associate of Arts degree in General Education, Long moved to the island of Hawaii to teach in elementary schools. When he arrived, he claimed that some Native Hawaiians were practicing what he called magic. Max Freedom Long was at first skeptical of this magic, but later became convinced that it worked. He then devoted the rest of his life to creating theories about how the Native Hawaiians did what he claimed they did, and teaching those theories through the sale of books and newsletters.

Many of Max Freedom Long's theories are expounded upon in Secret Science Behind Miracles and his theories encompass topics in religion & spirituality, occult & paranormal, magic studies, new thought, and new age & spirituality.