This document summarizes an analysis of the complexity of various products based on factors like design, function, manufacturing, learnability, and usability. It analyzes over 20 everyday products like erasers, mugs, chalk, rulers, axes, belts, lamps, and headphones on a scale from more complex design and manufacturing to easier learnability and usability. The analysis considers each product's form, dimensions, materials, mechanisms, and how users interact with and learn to use the products.