Leather book binding and zip: what they have in common

1. Step 1. Leather book binding — is part of — Codex (book). Boards covered with leather.
2. Step 2. Codex (book) — is made of — Paper. Later ones were made of paper.
3. Step 3. Paper — is material for — Paper money. Paper.
4. Step 4. Paper money — is used in — Wallet. It holds money.
5. Step 5. Wallet — has part — Zip. A zipped coin compartment.

Open Evothings