The purpose of this booklet is to provide a definition of phonological and morphological principles governing the English spelling system. Included in the discussion are an exhaustive list of sound-to-spelling correspondences, lists of common prefixes and suffixes, and rules for combining affixes with base morphemes. Charts provided outline checked vowel correspondences, free vowel correspondences, correspondences for vowel-r combinations and consonants, common unstressed endings in monomorphemic words, prefixes, common nonpalatalizing suffixes, and symbols. (Author/KS)