This document discusses the different sources of investment for startups at various stages - seed/pre-round, angel investors, and venture capital. It outlines the typical expectations and characteristics of investors at each stage, including the expected state of the startup, typical investment sizes and valuations, and background of the investors themselves. Seed/pre-round startups are expected to have an initial idea and plan but lack full development, customers, or revenues. Angel investors may provide $100K-$1M and are experienced individuals not doing investing full-time. Venture capital firms raise other people's money and provide larger $500K-$1.5M investments for later stage startups seeking $5-10M valuations.