The result of an analyst's work is a short conclusion that can be checked. A good one fits on a single page.

Thesis. One sentence: why the company is worth more or less than the market asks.
Business and moat. What it earns on and what protects it.
Numbers. Growth, margin, debt, earnings quality — the three or four that matter.
Valuation. A value range and a margin of safety.
Risks. What would have to happen for the thesis to be wrong.
Catalysts. Which events could change the market's mind.

Thinking traps:

One technique against all three: write down in advance which facts would make you admit the mistake and sell.

Financial analyst

Inventory sits for: inventory / cost of goods × 365 = 200 / 600 × 365 ≈ 122 days.
Customers pay after: receivables / revenue × 365 = 150 / 1,000 × 365 ≈ 55 days.
We pay suppliers after: payables / cost of goods × 365 = 120 / 600 × 365 = 73 days.