Isaac Asimov Life and Energy Book First Printing Discus 1972 Vintage Avon Unread

Isaac Asimov's Life and Energy first printing vintage 1972 paperback book via Avon, very tight seemingly unread spine. Minor spine exterior wear toward bottom edge, some page aging. Ships safely bubble wrapped in a sealed padded polymailer with cardboard backing :) The condition of this item is extensively detailed in the high-resolution photos. Comes from a non- smoking, no-pet, temperature controlled environment. I package well and ship quickly, as seen by my feedback. Buy with confidence - thanks for looking~