Book excerpt: This book offers a primer on the valuation of startups. Innovative startups are characterized by high growth potential that usually absorbs liquidity. This is unattractive for traditional banks, replaced by other specialized intermediaries such as venture capital or private equity funds, which diversify their portfolio basing their strategies on a multi-year exit. Startups coexist in an evolving ecosystem with established firms, to which they transfer innovativeness, technology, flexibility, and time-to-market speed, contributing to reinvent the business models and receiving from mature firms feedback on the current market features, the existing clients, and their unsatisfied needs. The valuation paradigms represent a central issue for any start-upper seeking external finance, either from family and friends or through a wider professional placement. This book, complemented by practical cases (concerning, for instance, FinTechs, digital platforms, and e-Health applications) offers a guide to practitioners, students, and academics about the trendy valuation patterns of the startups based on their strategic business planning