In Part 1 a large collection of group-theoretical and matrix formulae are presented. Also provided is complete information on the structure and properties of the point groups, including their generation and worked-out examples that will ensure that the reader can see in practical cases how the tables are used. In Part 2 detailed information is given for 75 crystallographic and non-crystallographic point groups (multiplication tables, characters, irreducible representations, Clebsch-Gordan coefficients, double groups, etc.).