i recommend you all to read Ron Carlson's "Fast Facts on False Teachings". it covers a wide easy to read general outline of major false religious beliefs such as the seventh day, buddhism, new age, hinduism, islam, roman catholicism, freemasonry, mormons and etc.


i also recommend you to see "Witnessing the Cults" book by alex wilson and christine tetley. its a great exposition on major christian cults additionally with the nefarious iglesia ni cristo cult. im not sure if the book is only available in the philippines.