Projects
Ulysses combines single documents or texts into so called projects. Imagine a project as a folder with your work, which contains all relevant text parts, chapters, ideas, notes, etc.
Ulysses only sports one single window, composed of a project- and a document part. The project part features a so called Document Browser, a Document Preview and a Filter.
The document part offers an Editor, a Notepad, a Control Panel and tabs to switch between the currently open documents.
The title of the window corresponds to the title of the currently open project.
Documents
The upper part of every document has a so called "tab" which holds the document title. If several documents are open at once, you can switch between them by clicking on the respective tab. Rearranging the tabs is done via drag and drop.
The currently inactive documents are pale colored. New, unsaved documents, or changed documents that you're currently working on, have a black bullet next to their title.
Beneath the tab is the actual document. Each is separated into the Editor, the Note Pad and the Control Panel.