The document discusses applying lean principles to building products. It outlines the 9 steps to build products the lean way: 1) Have an idea, 2) Identify customers, 3) Define the problem, 4) Identify riskiest assumptions, 5) Set success criteria, 6) Validate through experiments, 7) Make decisions to persevere, iterate or pivot, 8) Learn from each iteration, and 9) Only then discuss solutions. Many successful companies and organizations use lean, including startups, GE, Intuit, and the US government. The presentation encourages validating solutions through minimum viable products and customer feedback.