When a bank loans, they put an entry into assets (loans collectible) and liabilities (owed to depositor). They do not take the money out of reserves, they create it out of thin air. It’s a double entry on an accounting ledger 27 – Here’s the source for that by the way – Werner, R.A., 2014. Can banks individually create money out of nothing? — The theories and the empirical evidence. International Review of Financial Analysis, 36, pp.1–19.
A good starting point for you is “The Creature from Jekyll Island” by G. Edward Griffin and or “The Obscured Principles” by Dorian Crane – both available on amazonia . . .
Have Fun! – Run the Gun! – and remember – Fish Heads are Cheap!!