This workbook, updated for use with the fifth edition of the "Publication Manual of the American Psychological Association", is designed to help students to improve their writing skills. The resource contains groups of instructional exercises on various aspects and features of the "Publication Manual", including references and citations, grammar, headings, serialization, statistical and mathematical copy, italics and capitalization, numbers style, and table formatting. The workbook can be used as a learning module for the classroom or for independent study.