This document discusses how to build a minimum viable product (MVP) and common mistakes to avoid. An MVP aims to validate an idea with minimal resources by focusing on core features that provide user value. Benefits include lower costs to test ideas quickly and gather evidence to refine or prove concepts. Common errors include removing features too important to users, making everything seem essential rather than minimal, and assuming what users want without valid research. An example MVP is given of an online shoe store that photographed competitors' products to validate selling shoes online could work.