The APSA (American Political Science Association) Manual remains the standard style guide in the Political Science discipline upon which students, junior faculty members, and well-established scholars authoring manuscripts, as well as editors, copyeditors, and proofreaders, can rely. APSA style, in most instances, follows guidelines set forth in the Chicago Manual of Style, 17th edition (CMS). Throughout this companion website, CMS citation numbers are included in parentheses, when appropriate, to refer readers to specific sections of CMS’s 17th edition.