Hi HN — I’ve been building p-book, an open-source interactive book format that personalizes how a reader explores one topic.

The first p-book is for kids and teaches how recommendation systems work — including suggestions, privacy, filter bubbles, and fairness.

What I’m trying here is not only to personalize what comes next, but also how the same topic can be explored: through Missions, Browse, Read, or Map.

It’s still early, and I’d especially love feedback on three things:

- whether the navigation modes feel genuinely different, - whether the topic is understandable for kids, - where the experience feels confusing or too complex.