How to write a story idea for a great personalized book

When you create a book in Toupie, the first thing we ask is simple: what's the story idea? One line is enough. Not an outline, not a synopsis — just a starting point. What you write there isn't the text of the book: it's the springboard the story is written from. Here's how to use it to get a personalized book your child asks for night after night.

A concrete line beats a vague adventure

The “What's the story idea?” field accepts up to 500 characters, but you don't need all of them. What makes the difference isn't length — it's being concrete. A specific activity gives the story a natural beginning, middle, and end. A vague request leaves it drifting.

✗ “A fun adventure” → the story wanders in every direction.
✓ “Léo learns to ride his bike at the cottage” → a clear goal, a small challenge, a proud finish.
✓ “Mila is scared of the dark and makes peace with her room at night” → a concrete feeling to move through.

Think of a real moment in your child's life: a first time, a fear to tame, a big day coming up. That's almost always a better starting point than a general theme.

You don’t need more — but each field does real work

Below the line are three optional fields. You can skip all of them. But when you fill one in, it has a real effect on the book:

Setting — where it happens (the cottage, the park, outer space…). Pick a suggestion or write your own. It places the scene without you having to describe it in your line.
Tone — the narrator's voice: calm for bedtime, adventurous, funny, heartwarming, educational, or magical. It's what separates a gentle bedtime story from an action-packed one.
Lesson — a value to carry: sharing, bravery, kindness, patience… It's woven into the plot, never tacked onto the end as a moral.

The lesson is woven in, not glued on

This is the part that surprises parents most. If you pick a value like bravery or sharing, it doesn't become a line stapled to the last page (“And so Léo learned that sharing is good”). It's built into what the hero goes through — they have to be brave to move forward, and the story itself shows it. A lesson that's felt sticks; a lesson that's recited is forgotten.

Add everyone to the cast first

If your idea mentions someone — a sister, a friend, a grandparent, the dog — add them to your cast first. That's what keeps a character looking the same from page to page and book to book. If you name someone who isn't there, Toupie notices and offers to add them before continuing. (Reminder: friends are described in words, no photo — that's our line to protect other people's kids.)

Pick the right book size

Book size sets both the length and the vocabulary level in one move. We suggest a size based on your youngest hero, but you can change it:

Short — about 8 pages, for under 4. Simple sentences, perfect for bedtime.
Medium — about 15 pages, for ages 4 to 6. The default for early readers.
Long — about 25 pages, for 7 and up. More plot, richer vocabulary.

What if you leave it all blank?

It still works. With no line, no setting, no tone or lesson, Toupie writes a story around your heroes as they are. It's a great way to see what the app comes up with, then run it again with a sharper idea. The best book often comes from the second try — once you've seen a first version and know what to tighten.

Ready to try? Make your next book — one line is enough to start.