Our brains accomplish something unbelievable when we read. This form of communication did not develop in the course of evolution – reading is a cultural invention. So, what happens when we read, and is readability measurable in any way? This book provides designers with an overview of the latest insights from neuroscience and readability research, as well as the recommendations from typographers. It means to re-examine myths and impart a deeper understanding of the reading process. To this end, the content of texts even non-scientists are able to understand was processed. In accordance with stringent rules, the book is designed to draw the diverse sources together in harmony and, thus, promote the exchange between design and science.