Bring your own material. Work through it properly.
A desk holds one source - a PDF, a lecture recording, a chapter you pasted - and every tool you need to get through it. Ask questions about it, generate cards and quizzes from it, map it, or summarise it, without opening another tab.

What a desk accepts
Files you already have
PDF, DOCX, PPTX, TXT and Markdown, plus photographs of pages in PNG, JPG or WEBP.
Text you paste
A chapter, a set of notes, an answer key. Useful when the material is not in a file yet.
Links
A YouTube lecture or a web page becomes the same kind of source as an uploaded file.
Five steps, start to finish
The tools on the rail
Chat
Questions answered from this source only.
Flashcards
Recall practice built from the whole document.
Quiz
Questions with answers you can check yourself against.
Mind map
Structure of the chapter as a diagram. Standard and Premium.
Summary
A shorter version to revise from the night before.
Four desks, and what they were used for
The file you kept meaning to read becomes work you finished.
01Answers that use your material’s wording, not a generic version of the topic.
02Cards and quizzes you did not have to write, drawn from what you are actually studying.
03One place per source, so the reading, the questions and the practice stay together.
04A route onwards: the same source can become a narrated lesson when reading is not enough.