Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: The given examples are good, but not enough examples

I had to get this book for a Theory of Computation class. This book does not give enough examples for you to fully understand the concepts. Although the chapters are short and easy to follow, you get no more than two examples per chapter and the given examples do not help you with the questions at the end of each chapter. How do they expect you to get the answers right if they don't give you examples?