Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Dissapointing attempt at writing on important topic

This book appears to have been butchered by non-scientific editors who have removed essential explanation of diagrams and shortened any sentence that appeared to have syntax that would trouble anyone over the age of thirteen. I opened it with high hopes since I was looking for a gentle introduction to an important topic that I could recommend as initial reading for students. But I hesitate to let students near it since it has so many mistakes and blunders. (One quote: `Together with Niels Bohr, Wheeler discovered fission'. Has any scientifically educated person looked through the text before publication??)The fact that diagrams are full of elements that are not referred to in the text is symptomatic of the very unprofessional way that this book has been produced. Aczel actually has some nice persnal anecdotes... what a wasted opportunity!