Hubbard wrote in a Scientology policy letter in 1972 that "Study Tech is our primary bridge to Society." Most Study Tech books include a two-page biography of Hubbard that does not mention his role in creating Scientology. Religious scholar J. Gordon Melton said that Hubbard wrote the Study Tech materials to help people who joined Scientology with a low level of literacy, and that the materials are used within the Church of Scientology “not to proselytize for the religion but to teach people how to read.”