I've read the first two chapters of Principles of Microeconomics - Gregory N. Mankiw
Someday I will "understand" economics a tad bit.
Now reading The Machinery of Life - David S. Goodsell.
It is a short book about cells, viruses and other stuff and how cells work inside microorganisms, inside the human body, the cell functions, components and how they evolved, their characteristics and etc.
Is one of my pet peeves, my curiosity about how those things work.