This guide helps entrepreneurs and investors understand the three most common types of convertible notes in venture capital: Convertible Promissory Note (CN), Simple Agreement for Future Equity (SAFE), and Keep-It-Simple Security (KISS). It explains their key differences, terms, and practical implications in fundraising. Ideal for startups seeking smart investment structures, this guide simplifies complex legal concepts and highlights which note best fits different funding scenarios. A must-read for founders navigating early-stage financing.