This is everything the textbook knows about you. All of it is kept only in this browser.
Progress
The progress file is the only copy of your data outside this browser. Save it from time to time.
Your project
The practice builds a site from these details. An empty field takes its value from the example, shown in gray.
Your own key for Echo
With a key you can ask Echo questions in your own words. The key is kept only in this browser, goes into the progress file only if you say so, and is sent only to the service you chose. Each question is paid for from your key.
Language
Your progress, cards, practice and brief are shared by both editions. Your choice is remembered in this browser.