Introduction -- 1. Quantities and Measures -- 2. Variables and Functions -- 3. Trigonometry, Geometry of Plane and Space -- 4. Cartography -- 5. Derivation -- Integration and Differential Equations.This undergraduate textbook presents a unique comprehensive overview on Mathematics in Earth Sciences and Geography. It deals with fundamental theoretical and applied mathematics, needed by bachelor students in a wide range of subjects. The book is illustrated with many examples and over a hundred practical exercises, with solutions included in the book. In addition, this textbook highlights numerical resources by using two free software packages (R and Xcas) and introducing their use.