An Introduction to Analog and Digital Communications

I bought it and it is new. Really satisfied!

Its a decent book. It it is relatively easy to follow and logically put together. It would not be a good book for someone who hasn't had a class in fourier analysis or introductory signal analysis. There is a very good review of those subjects at the beginning.

excessive theory book without practical examples you need other book like Electronic Communications Problem Solver (Problem Solvers Solution Guides) for have exercise to do also to complement this book

It is very good

Good

This book gets to the point about a lot of the algorithms and calculations. I feel like it could really be summarized into maybe 1/3 the size and still get you all the information you need about the various modulation processes.

This textbook is good as a very dense reference to communication systems. The text is a little confusing at times, but with some supplementals it is a good learning experience. The book is not for those new to communications. Some background on the subject would be beneficial before reading this text.

Surprisingly good for a comm. theory text. It's fairly comprehensive and the writing is clear and accessible (rather than being overly dry). The authors clearly know how to write, which is always helpful in a book that has to contain so many mathematical treatments.Of course, you won't be able to pick this up and run straight out of the tenth grade (unless you're special) but it's pretty decent as textbooks go.