Purposeful Punctuation is a guide to punctuating English sentences for writers and editors. It has been used for several years in college classes from freshmen to graduate. It will work as a supplement to English instruction in junior high or high school. The author, Dr. Heaberlin, has fifty years experience in teaching-from seventh grade to graduate school. He has included many exercises and practice tests with answers. This guide complements his previously published guides on writing style-English Syntax and Connecting for Coherence.