IQ tests are increasingly being used as part of the job application process in various industries, including the government, armed forces, education, and industry and commerce.  Written and compiled by IQ test experts, this book contains 1000 practice questions organized into 25 tests, along with a simple guide to assessing performance.  Working through the questions will help improve vocabulary and develop powers of calculation and logical reasoning.  This new edition includes several more difficult tests, for those test takers who want a greater challenge.