As IQ is hereditary, it is not possible to increase your IQ. It is, nevertheless, possible to improve your performance on IQ tests by practicing the many different types of question and by learning to recognize the recurring themes. The questions in this book are typical of the type and style of question that you are likely to encounter in actual tests and are designed to provide valuable practice for anyone who may have to take this type of test in the future. It is our belief that by practicing different types of IQ tests, and by attuning your mind to the different types of questions you may encounter, it is possible to improve by a few vital percentage points. It is these few percentage points that may prove crucial in increasing your job prospects and may mean the difference between success or failure when attending one of the many job interviews that include an IQ test.