Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent for both beginners and experts

Was recommended this book by a colleague and have been thoroughly impressed by it.Brentani has done a great job at producing a book that is well structured, clear, concise with thoughtful examples and a great glossary and thus perfect for the novice, whilst at the same time including all the essentials that would make this book an excellent reference for the experienced practitioner.