There is a fantastic book that covers this topic called "The End of Alchemy" by Mervyn King who was Governor of the Bank of England during the 2007 crisis: http

There is a fantastic book that covers this topic called "The End of Alchemy" by Mervyn King who was Governor of the Bank of England during the 2007 crisis: https://www.goodreads.com/book/show/30231791-the-end-of-alchemy https://www.goodreads.com/book/show/30231791-the-end-of-alch... It explains how banks work today in a patient and and accessible way that helps you really "get" it.