The process of finding components (or factors) which when multiplied give the original expression is called factorisation. A number or quantity that when multiplied with another number produces a given number or expression. For example, the factors of 12 are 1, 2, 3, 4, 6 and 12. That means you can create 12 using some of these ingredients. Similarly, algebraic terms also have factors. These are the ingredients that make that term. The process of factorisation can be defined as the disintegration of a term into smaller factors. Whereas, the algebraic expressions are built up of variables, integer constants, and basic arithmetic operations of algebra. The chapter explains basic concepts like types of factorisation, factorisation as a sum or difference of two cubes, factorisation using the formulae for the cube of a binomial and factorisation of algebraic expressions.