Pieter Levels' Make: Bootstrappers Handbook is a guide for building and running a successful independent startup, focusing on the "indie" way of doing things. Levels advocates for building products that solve your own problems, launching early and often, and growing organically through a great product rather than relying on advertising or venture capital. He also stresses the importance of monetization, encouraging bootstrappers to charge for their products and services, and automating processes to make their businesses run more autonomously. The handbook concludes with a discussion of exit strategies, advising bootstrappers to wait for serious buyers and to negotiate aggressively for a fair price.