What is an atlas, and how is it different from a guide?
A guide answers a question from start to finish; an atlas entry describes a single item — a food, an exercise, a threat type, a celestial concept — in a standard structure. Because every entry in an atlas follows the same layout, learning to read one entry means you can read them all. The site contains eight atlases, each serving as the reference shelf of its own field.
How to read an entry
Every entry carries three kinds of information: a plain-language definition of the item, practical points you can use in daily life, and any cautions worth knowing. Numerical values — nutrient contents, requirement ranges, durations — are mostly estimates based on averages and are presented as approximate ranges; remember that they can vary from person to person.
Filters and cross-links
In each atlas you can narrow the entries by category and key characteristics, so you find what you need without wading through long lists. The atlases also connect to one another: from an exercise entry you can jump to the muscle it works, from a food entry to the vitamins it contains. For learning concepts in sequence, the Academy is the companion piece; for calculations, the tools.