How to Use NotebookLM (Google's AI "Tool for Understanding")

26 minutesNew to AIFoundationTiago ForteAI Productivity

Tiago Forte. NotebookLM is the AI tool the article most enthusiastically recommends for long documents, and Tiago Forte — the Building a Second Brain guy — gives the cleanest tour of why. He demonstrates summarising meeting notes, querying long PDFs, and the source-grounding feature that stops the model from inventing facts the documents don't contain. After watching, you'll understand why "upload the PDF to NotebookLM" is the article's default suggestion.

AI Expert note

Chosen because it explains why source-grounding matters, not just where the buttons are — that's the part that transfers to whatever the current NotebookLM interface looks like.

What you should get from this

You can set up a NotebookLM notebook and use it to summarise, question and cross-reference long documents from your own sources.

Watch or know first

None — watchable cold; have one long PDF of your own ready to try afterwards.

Last reviewed: May 18, 2026

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