I am looking for non-fiction books where I can learn something new. I have read many of the popular books already, and it's getting harder to find new topics to scratch the surface of. I've read many of the popular books in business, general science and math, history, food, psycology, politics (both for and against my views), biographies. I've gone as obscure as reading about dead bodies, the supreme court, gardening, trees, algae, navigation, jewelry, jails, slums, just to name some. I'm trying to avoid memoirs and self help books.
I'm mainly looking suggestions which might not be that popular (as I probably read it already), and preferably in an obsure topic that I havent come across. I’ve pulled many of my reads off lists containing highly rated / popular books.
by meteoraln