Introduction; 1. The central bank balance sheet: why it matters; Appendix to chapter 1: stochastic discount factors; 2. A stylized set of accounts for the Treasury, the central bank and the State; 3. Helicopter money drops; 4. The fallacy of the fiscal theory of the price level – and why it matters; Appendix to chapter 4: a formal approach to the FTPL; 5. Life at the zero lower bound and how to escape from it; 6. Why the Eurosystem isn't a proper central bank – and how to make it one.