Hikara is an AI-powered reading knowledge graph. Import your library and watch ECHOES, CHALLENGES, and BRIDGES appear between the books you've read — three branded relations scored 0–100 by our model.
Pick 1–5 books from your library and start a conversation. Each book speaks in its own voice — drawing on your notes, highlights, and the ideas inside it. In multi-book mode, the most relevant book answers each turn.
Atomic Habits
You've been asking about discipline. The truth is, you don't rise to your goals — you fall to your systems.
So how do I build the system?
Every pair of books in your library is scored 0–100 across three distinct relations. You can pivot the graph by relation type to surface different patterns.
Same domain, complementary ideas. ECHOES compound a theme — reading both books reinforces the pattern from different angles.
Opposing viewpoints, productive tension. CHALLENGES sharpen your thinking — you only know what you believe by knowing what argues against it.
Distant fields, unexpected applications. BRIDGES are where reading earns its keep — when biology illuminates strategy, or art illuminates engineering.
Get personalized AI-powered book recommendations tailored to your reading preferences and interests. Discover your next favorite read instantly.
Get Your RecommendationFree to start. No credit card required.
Go beyond a simple book list. Visualize the web of knowledge you've built through reading.
Transform your library into an interactive knowledge graph where books become interconnected nodes of wisdom.
Claude AI analyzes your personal notes and reading patterns to uncover deep, meaningful connections you never noticed.
Journey through your reading history and discover how ideas echo, challenge, and bridge across different domains.
Free users are limited to 5 books. Upgrade to Pro and unlock unlimited books, priority AI analysis, and advanced visualization features.
Unlike simple categorization, our AI reads your personal notes and highlights to find the surprising connections that matter to you.
Enable Journey Mode to trace your intellectual evolution chronologically. Watch how your interests and understanding have grown over time.
Join readers who are discovering deeper insights from their libraries. Start building your knowledge graph today — no credit card required.
Discover books organized by themes and authors. Browse curated collections to find your next great read.