Just Keep Buying: Proven Ways to Save Money and Build Your Wealth is a data-driven personal finance and investing guide by Nick Maggiulli. The book examines common questions around saving, investing, spending, debt, market timing, and building long-term wealth, using historical financial data and evidence rather than conventional financial assumptions.

Maggiulli explains practical strategies for saving and investing consistently, dealing with market downturns, deciding when to spend or save, and developing sustainable wealth-building habits. The book is particularly focused on long-term financial decision-making and evidence-based personal finance.