This booklet provides a ready reference for commonly used formulae. It includes basic information from A-level maths and extends this to include much of the mathematics used in engineering, science, and business courses. It is also a useful summary of formulae for first- and second-year mathematics students. Finally, it includes some probability and statistical formulae and commonly used statistical tables. These booklets are frequently provided for reference in university exams, so familiarity with the layout and contents can be beneficial.