This category is for sites dealing with various codes or methods of interpretion in holy books involving numerology. Many books, including the Bible, the Qur'an, and the Book of Mormon, are believed to have codes hidden inside them through which believers can foretell the future or discover knowledge. Gematria is the practice of assigning numerical values to letters, then finding hidden meanings of words by adding up the letters. This is practiced most frequently with Greek or Hebrew words and phrases in the Bible. Theomatics can refer to gematria or to other types of holy book codes. The most common type of theomatics is ELS, or the equidistant letter sequence phenomenon. Through this method, a search is done through a text picking up every Nth letter. These letters sometimes produce meaningful words and phrases.