Start studying Orton Phonograms Set 2. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Guilty God The 70 - two Orton photogram, so are the primary codes for speaking spelling and reading decoding the English language they represent the 40 - five sounds heard in English speech. A photogram is a letter or a set combination of letters that represents one or more single voice sounds in a word The photogram consist of the 20. Logic of English 74 Basic Phonograms based on Orton phonograms. The set includes both single and multi-letter phonograms and sounds. Learn with flashcards, games, and more — for free.