Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Good, readable and intersting biography of Edwin Hubble

I believe the biography presents a complete and balanced account of the life of Edwin Hubble. The account covers his early years, family, education, military service, and his notable scientific career. The account of his education was interesting, especially his time at Oxford, England. Hubble's brief military career was covered, and his use of the image of "Major Hubble" afterwards tells much of his character. His scientific career, his work and professional controversies were covered in detail. If I were to be critical, I feel Hubble's early life received too much attention, I would prefer to have seen his scientic career covered in more detail. I brief, an interesting book, it almost makes me feel that I've met the man.