?Dictionary of Mathematics? has been compiled to meet the needs of students of Mathematics at all levels. An attempt has also been made to write the entries in a clear and lucid style to provide both straight forward definitions and invaluable background information. Clear and easy illustrations have been included wherever the meaning of a word can be best understood. Though the author has taken utmost care to cover all important terms, he is quite aware of the fact that no work of such a nature can be final and perfect. The selection of the terms is a problem in such a project and the aim of the author has been to strike a good balance. The dictionary will be of immense value to students of Mathematics, and others studying or working in the related fields. This dictionary could be considered a commendable achievement by any standards.