This book provides a gentle introduction to wavelets, a subject that is traditionally viewed as a very complex and highly mathematical research topic. There are many works already published on wavelets, each highlighting different approaches to the subject matter and written with sophisticated mathematics. However, Fugal (founder and president, Space & Signals Technologies LLC) has chosen to provide readers with an intuitive approach to the subject with plenty of discussions and ample examples. The contents originally formed the bulk of materials the author used in a professional workshop introducing wavelets. The book illustrates concepts of different wavelets, filtering operations, and practical usages with figures and simple MATLAB numerical examples to provide the reader with insight into the underlying behavior. Technical terms are often defined when first used. A special section at the end of the text shows a sampling of other wavelet tutorial materials available in books and articles and on the Web. This work is ideal for readers who would like to have a high-level understanding of wavelets without getting bogged down by heavy mathemati