Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: COULD'VE BEEN SO MUCH BETTER!

This book has its moments, but I couldn't recommend it to anyone. It is full of errors, contradictions, omissions, misspellings, etc. Having previously read another of Billy Harry's books,("The Ultimate Beatles Encyclopedia") I knew that he wasn't too keen on hiring a good proofreader, but the Lennon book is just too much!!