Trello is built on three very simple elements that are enough to organise almost anything. Once you understand what each one does, you already know the essentials of the tool.

The three building blocks

• The board — your workspace, dedicated to a single project (e.g. « Website redesign »).
• The lists — the columns on the board, usually stages (« To do », « In progress », « Done »).
• The cards — the actual tasks, which you drag from one list to another as they move forward.

A card holds much more than a title: a description, a due date, labels, a checklist or attachments. You add detail only when you need it, without ever making the whole thing complicated.

This visual structure makes progress instantly readable: at a glance, you can see what is still pending and what is finished.

Key takeaway: board, list, card. The whole of Trello fits into those three words.