● Lab notebook · Independent

Tested guides for Google’s AI tools. Verified by hand.

Prompts, fixes and plan limits for Gemini photo editing, NotebookLM and Gemini in Docs, Sheets and Gmail. Every guide is tested by hand before it is published.

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Three shelves

Gemini & Nano Banana

1 guide

Nano Banana and Gemini photo prompts, edits and fixes.

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NotebookLM

1 guide

Sources, Audio Overviews, plans and limits explained.

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Gemini in Workspace

1 guide

Gemini in Docs, Sheets and Gmail: where it is and how to use it.

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Recently published

Recently published guides

Hands-on guides, prompts and fixes, newest first.

Fix it fast · symptom → cause → fix

Look it up by error

Titled by what you see on screen.

“Nano Banana not working”

Symptom
Image returns unchanged, or the edit option never appears.
Likely cause
Region, age or account limits; stale app session.
Fix
Sign out and in, switch to the image-capable model, retry with a shorter prompt.

“Gemini missing in Sheets”

Symptom
No Gemini icon in the Sheets toolbar.
Likely cause
Plan does not include it, or admin has the service off.
Fix
Check plan, then Admin console → Generative AI → Gemini for Workspace.

“Unable to add source”

Symptom
NotebookLM rejects a PDF or link.
Likely cause
Source count or size limit; paywalled page.
Fix
Split the file, paste the text directly, or remove an old source.

Google AI guides you can rely on start with hands-on testing. Google Edits is an independent publication with step-by-step guides, prompts and fixes for Gemini photo editing with Nano Banana, NotebookLM and Gemini in Google Workspace.

What our Google AI guides cover

How we write our Google AI guides

  1. Start with a real taskEvery guide begins with a real task or error that readers hit.
  2. Try it ourselvesWe follow the steps and note the plan and region they apply to.
  3. Explain it plainlyResults are written in clear language, with the exact prompt or setting.
  4. Keep it currentWhen something changes, we re-test and update the guide.

Frequently asked questions

What is NotebookLM?

NotebookLM is Google’s AI research assistant that answers questions only from the documents you add and cites the passages it used. Google renamed it Gemini Notebook in July 2026. Read the full NotebookLM guide.

Is Nano Banana Pro free?

Not in the Gemini app. Free accounts use Nano Banana 2 within limits, while Nano Banana Pro needs a paid Google AI plan. Developers pay per image through the Gemini API. See Nano Banana Pro access, limits and prices.

How many sources can you add to NotebookLM?

A tracker last verified in October 2026 lists 50 sources per notebook on the free plan, 100 on Plus and 300 on Pro. Google changes limits often, so confirm in your account. See the NotebookLM limits table.

What are the best Gemini prompts?

The best Gemini prompts name a task, add context and state the output format, following Google’s persona, task, context and format pattern. We list 50 ready-to-edit examples for work, study and writing. Copy the Gemini prompts.

How do you write a good Nano Banana prompt?

Describe the subject, action, location, composition and style in one or two natural sentences. For edits, say what to change and what to keep. Refine in the same chat. Follow the Nano Banana prompt guide.

Is Google Edits affiliated with Google?

No. Google Edits is independent and is not affiliated with, endorsed by or sponsored by Google LLC or any government agency. Our guides are general information, not professional advice. See the disclaimer.

How do I report a mistake?

Use the contact us page. We re-test the claim and update the guide.

Why trust our Google AI guides

Our Google AI guides are written to be checked. We name the plan and account type a result applies to, show the exact prompt or setting we used, and point to Google’s own documentation when a fact cannot be tested by hand. For official product details, see Gemini Apps Help and NotebookLM Help.

  • Plan and account type named
  • Exact prompt or setting shown
  • Official Google docs cited
  • Re-tested when readers report changes
Google AI guides from Google Edits