60-Second Overview
What is a BIP39 Book?
A real book. All 2,048 BIP39 seed words hidden inside. Your Bitcoin backup — in plain sight.
The Problem
Your Bitcoin seed phrase is 12 or 24 English words. Anyone who finds them can take your funds. Writing them down in plain text is risky. Storing them digitally is risky. Metal plates are obviously crypto-related to anyone who recognizes them.
The Solution
A BIP39 Book is an ordinary-looking book — a book or a wisdom collection — that contains every possible seed word, woven naturally into its text.
Instead of writing down your seed words, you note where each word appears in the book: page, line, word position. That gives you a short list of numbers — meaningless to anyone without the book.
Example
Seed word "ocean" → found on page 47, line 3, word 5 → 47-3-5
Why It Works
- Book alone = just a book. No one suspects anything.
- Numbers alone = meaningless without the book.
- Both together = your seed phrase. Store them separately.
Two Books to Choose From
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