Mark the session levels

The second market is bitcoin, and reading it starts with three lines that go on the chart before anything else.

What a session level is

Each trading session has a highest price and a lowest price. When the session ends, those two prices stay on the chart.

Mark them. The Asian session high and low, then the London session high and low, drawn as horizontal lines before your own session opens.

A finished session leaves two prices behind, and both of them stay relevant.

Why they hold orders

Module 8 explained why an obvious high has orders sitting above it, and module 12 taught which highs are worth marking.