The Microsoft Word volume of the MOS Pathway series, preparing self-studying Vietnamese learners aged 14 to 19 for the MO-100 exam on the Office 2019 track. Across seven chapters it teaches and drills all six MO-100 objective domains skill by skill: managing documents (navigation, page formatting, headers and footers, saving and sharing, inspection), text, paragraphs and sections (find and replace, text effects, Format Painter, spacing and indents, built-in styles, columns, breaks), tables and lists, references (footnotes and endnotes, citations and bibliography, automatic tables of contents), graphics (shapes, images, SmartArt, 3D models, text boxes, alt text), and collaboration (comments, track changes). Each skill follows a worked example, guided activity, and tiered independent exercises, with a mental model before each click path, exam-format tips, AI-integration callouts, and Microsoft 365 differences noted. The volume closes with a full timed Word mock exam and step-by-step solutions. It assumes the foundations from Volume 0.