William Strunk1999
Strunk and White's timeless guide to clear writing. Core principles: omit needless words, use the active voice, put statements in positive form, and make each paragraph a unit of composition. Use definite, specific, concrete language. Keep related words together; place emphatic words at sentence's end. The book covers grammar essentials (commas, semicolons, possessives) but its real power is the relentless push for clarity over ornamentation, brevity over bloat.