What’s happened? NotebookLM just picked up a sizable upgrade to Video Overviews, the tool that turns your sources into narrated videos. Google has added Nano Banana, its Gemini powered AI image generator, for richer, contextual art, and a new Brief format when you want the essentials without the sprawl.

• Video Overviews can now choose from six looks, watercolor, retro print, anime, whiteboard, papercraft, and heritage.
• New way to watch with the Brief format, which goes for the core ideas in one pass. Explainer remains for deep dives.
• Nano Banana pulls cues from your actual documents, so the visuals track with what you uploaded.
• Some NotebookLM Pro users will start seeing the update this week. A broader rollout will follow in the coming weeks.

This is important because: Dense and dry material can feel like a slog to read through. Visual learners tend to lock in concepts when they can see them, not just read them, and a quick brief gives you a snapshot before you invest in a longer watch.

• The new looks turn abstract passages into scenes, charts, and sketches that actually help.
• Brief gives the gist at a glance, helping you decide if more detail is worth it.
• Illustrations tie back to your sources, which cuts down on generic art and boosts recall.

Why should I care? Because you can shape the output to match how you learn. Nothing is fixed. Tweak the format, pick a look, and steer the content until it clicks.

• Choose a style that fits: Watercolor for concept mapping or whiteboard for step by step thinking, with anime or retro print when a little flair helps memory.
• Start compact, then switch to a deeper, structured cut when you are ready.
• Add targeted prompts, highlight methods and results or prioritize prep and steps, so the video mirrors your goals.
• Google keeps making NotebookLM better, just last month it added a raft of new features.

Okay, so what’s next? If you are on Pro, the workflow stays simple so you can try it now. Everyone else should see it soon, and NotebookLM team’s public replies hint at where it might go.

• We’ve been big fans of NotebookLM for a while now, and recommend you download it.
• Create a Video Overview, then customize the format and style. Add a nudge if you want tighter scope.
• On X, the NotebookLM account floated “sketch to learn” as an interesting direction.
• There’s also iPhone availability in the works, but for now it’s part of a roadmap, so there’s no firm release date.