For those who are interested in the accounting side, I highly recommend Financial Shenanigans by Howard Schilit [1]. If you don't have an accounting background, all you need to get value out of this book is a basic understanding of the double entry accounting method, and understand the four financial statements: balance sheets, income statements, cash flow statements, and statements of shareholders equity.

After reading this book, I found myself digging through earnings reports to look for signs of shenanigans, and have found cases that raise my armchair-accountant eyebrows.

[1] https://www.amazon.com/Financial-Shenanigans-Fourth-Accounti...