Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I wanted Al Bielek, got Morris K Jessup and Allende instead

Bottom line: I like Al Bielek's version of the PX better. This one is more to the original story. I like Al Bielek's personal account of time traveling. This book is more about the "facts" of the account. No Al Bielek in this book.