Puzzles you've started are kept here exactly as you left them. Switching pictures never throws one away.
Start a puzzle and it will be saved here automatically, so you can leave it half-done and come back whenever.
Choosing one starts a fresh puzzle. Whatever you're working on is saved to In progress first.
Everything you've finished, hung by the month you finished it. Click any piece to rename it or change its frame.
Finish a puzzle and it gets framed and hung here, with your title and the date.
The pieces go back to the table and the clock resets. Nothing else you've made is affected.