This is an introductory book that gently and carefully explains the mathematical basics necessary for studying economics. It's easy to understand, even for beginners, and is recommended for students in economics and business administration departments. ✅ Writing: None (or "Some" / "A few pages," etc., depending on the actual condition) ✅ Creases/Stains: Minor scuffing on the cover (see photos) ✅ No problem for reading and studying *Please refrain from purchasing if you are sensitive to used items. *Will be packaged in waterproof packaging and shipped with care.