#tag in the library with a count. Click one to filter; the tags page explains.
The footer — the library folder’s name, the number of documents, and a gear for Settings.
Hover any document row for a moment and the time it was last edited appears.
Library
The sidebar
The month, Recents, Starred, the folder tree you can rearrange by hand, Tags and the Shelf, and everything in the right-click menus.
The sidebar is the library. ⌘S (or ⌘, or the button in its header) hides and shows it; drag its edge to resize it. From top to bottom:
The wordmark and the hide button.
Search — ⌘F from anywhere. See search.
Three numbered rows, so the left hand can reach them while the right is on the mouse: All Documents (⌘1), Timelapse (⌘2) and Today (⌘3) — today’s note, started for you if the day has none yet. The first also answers to ⌘P, the third to ⌘D. Under them, New Document (⌘N).
The month — a calendar, one cell a day, each shaded by how much of that day’s note there is; a click opens the day’s wall. See the calendar below.
Recents — the six documents you opened most recently, newest first.
Starred — documents you have starred, from the right-click menu. The section appears when there is at least one.
Documents — the folder tree, with a count. It starts collapsed on a fresh install, because All Documents is the better way to browse and the sidebar stays calmer without it; open it once and it stays open. Hovering a folder swaps its count for a + that makes a new document inside it; the arrows button in the header sorts everything by last edited, name, date created or your order. Folders remember whether they are expanded. The rows can be dragged into any order you like, and onto folders — see dragging below.
Shelf — documents set aside, collapsed, with a count. Present only when something is on it.
Tags — every
⌘I

