telecommunications

the author does a very poor job of explaining signals. I don't know why schools have to use such texts when there are so many other wonderful books. The problems at the back of the chapters are many times unrelated to the formulas in the chapters. On many occasions the author skips crucial details, and jumps on to something else. He seems to be in some sort of a big rush to get over it. It gives a student the sense that he is either forced to write the book or is just too bored of teaching signals. I doubt if he even has any patience in real life, let alone writing books. I had to buy another signals book from amazon.com to understand the material. This book alone is a disaster and can never be understood by a beginner in signals, even if he's very good in differential equations and basic EE concepts.