The Features Most People Never Find

You’ve been using 20% of this tool. Here’s the other 80%. NotebookLM has shipped a lot of features fast. Some are buried in menus. Some got removed as buttons but still work as prompts. Some are so obvious in retrospect that you’ll be annoyed you didn’t know sooner.

Features That Got Removed (But Still Work)

🚨 The Insider Moment: Timelines & FAQs NotebookLM used to generate Timelines and FAQs as dedicated Studio buttons. Google removed them in a UI refresh. The capability is still there — it just moved to prompts. This is worth knowing because it reveals something bigger: the prompts are often MORE powerful than the default buttons. The buttons are starting points. Prompts are the real tool. → Get both restoration prompts on the Prompt Library page

Hidden Controls Most Users Never Touch

Custom Instructions (Configure Chat)

Most users just type questions. Power users configure the entire personality, expertise level, and response style of their AI before asking a single question. Find it in the Chat panel’s three-dot menu. Change it per notebook to match the task.

Source Scope Toggling

In the sources panel, you can toggle individual sources on or off mid-conversation. Ask the same question against one source, then all sources, and compare the difference. Most users never touch this — it changes everything.

Notes as a Prompt Library

The “Add note” button in Studio is not just for notes — it’s your permanent prompt library. Save any prompt as a note. It lives in the notebook forever. Reference it in any chat by saying “use the prompt in my [note name] note.”

Feedback Per Slide (Slide Deck)

When generating slides, you can give feedback on individual slides — factual corrections, stylistic changes, restructuring — and only that slide regenerates. Don’t be the person that regenerates the entire deck when one slide is off.

Mind Map as a Gap Detector

The mind map isn’t just a visualization — it shows you what’s NOT connected. Sparse branches = underdeveloped topics in your sources. Use it diagnostically, not just decoratively.

Interactive Mode (Audio Overviews)

When an Audio Overview is playing, there’s an Interactive Mode button. Hit it and you join the podcast. You can ask the hosts to go deeper on a topic, request a simpler explanation, introduce a new angle, or ask them to argue the other side. This is not a gimmick, it fundamentally changes how you engage with complex material.

Integrations Most People Don’t Know Exist

Google Classroom

NotebookLM is available directly inside Google Classroom. Educators can pull assigned resources without manual uploading. Students query class materials inside a familiar interface.

Gemini App Integration

You can add a NotebookLM notebook directly into the Gemini app as a source. Gemini’s most powerful models then answer questions grounded in your notebook’s content. Best of both worlds: NotebookLM’s grounding + Gemini’s broader capabilities.

Flashcard → Anki Export

NotebookLM flashcards can be exported as CSV files. Import directly into Anki or any other spaced-repetition software. NotebookLM generates the cards; Anki does the learning science.

Study Guide → Storybook (via Gemini)

Generate a study guide in NotebookLM, paste it into Gemini with the prompt: “Turn this into an illustrated storybook for a [age/audience].” Gemini Storybook produces a 10-page illustrated story around the topic. A two-tool pipeline that most people haven’t connected.

Lesser-Known Capabilities

EPUB Support

NotebookLM supports EPUB files — the standard ebook format. This means you can upload books directly, not just PDFs. Entire libraries become queryable. (This is very recent update)

Audio File Transcription

Upload any audio file (podcast, recorded meeting, interview, voicemails) and NotebookLM transcribes and indexes it as a source. You can then query it, summarize it, or generate outputs from it like any other source.

Cross-Language Synthesis

Upload documents in different languages. NotebookLM can synthesize and respond in English (or another language you specify). Used by researchers and organizations doing international policy comparisons.

Deep Research Integration

NotebookLM’s built-in Deep Research mode can search the web AND your private sources simultaneously, combining open-web research with your closed-universe analysis in a single query. Access it via the source search bar.

What’s Coming

Confirmed/strongly signaled:
  • Deeper mobile integration with the Gemini app
  • NotebookLM Plus expansion into Google Workspace and Agentspace
  • Continued Gemini 3 capability upgrades
  • Google I/O 2026 (May 19–20) — historically the biggest NotebookLM feature drop of the year
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