Currently reading
Cristofori's Dream
Your Inner Fish: A Journey Into The 3.5 Billion Year History Of The Human Body
The Enchanted Wood
The Sparrow
The Ghosts Of Evolution Nonsensical Fruit, Missing Partners, And Other Ecological Anachronisms
Alas, Babylon
Certainly not the best post-apocalyptic I've read. I guess it became a classic since it was written during a time when everyone really was afraid everyone on the planet would nuke everyone on the planet (which is what happens in this book).