Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Clear, well written book

The authors use a very pedagogical approach. The objectives for each part are well identified, the explanations are intuitive, and there is a lot of engineering applications and exercises. This book is hence suitable for an undergraduate course or as a starting point in the subject.However, if you are searching for long mathematical demonstrations or advanced mathematical aspects (this was not my case), this is not your book.