How it works
3 posts on this topic.
18 August 2026 · 5 min read
The four locks behind a consistent AI picture book
Character consistency across a whole book isn’t a prompt trick. It takes four specific locks — here is each one and why it’s necessary.
17 August 2026 · 4 min read
Why AI picture books drift — and how we stop it
Image models are stateless, so page four forgets page three. Here is why that happens and how a locked character sheet fixes it.
14 August 2026 · 4 min read
Why AI illustrations usually aren’t print-ready — and how we fix it
Most AI art looks fine on a screen and falls apart in print. Here is what “print-ready” actually requires and how Once Books exports it.