diff --git a/18.md b/18.md
new file mode 100644
index 0000000..422ad9c
--- /dev/null
+++ b/18.md
@@ -0,0 +1,25 @@
+NIP-18
+======
+
+Reposts
+-------
+
+`draft` `optional` `author:jb55` `author:fiatjaf` `author:arthurfranca`
+
+A repost is a `kind 6` note that is used to signal to followers
+that another event is worth reading.
+
+The `content` of a repost event is empty. Optionally, it MAY contain
+the stringified JSON of the reposted note event for quick look up.
+
+The repost event MUST include an `e` tag with the `id` of the note that is
+being reposted. That tag MUST include a relay URL as its third entry
+to indicate where it can be fetched.
+
+The repost SHOULD include a `p` tag with the `pubkey` of the event being
+reposted.
+
+## Quote Reposts
+
+Quote reposts are `kind 1` events with an embedded `e` tag (see [NIP-08](08.md) and [NIP-27](27.md)).
+Because a quote repost includes an `e` tag, it may show up along replies to the reposted note.
diff --git a/README.md b/README.md
index 9390916..ba78113 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@ NIPs stand for **Nostr Implementation Possibilities**. They exist to document wh
 - [NIP-14: Subject tag in text events.](14.md)
 - [NIP-15: End of Stored Events Notice](15.md)
 - [NIP-16: Event Treatment](16.md)
+- [NIP-18: Reposts](18.md)
 - [NIP-19: bech32-encoded entities](19.md)
 - [NIP-20: Command Results](20.md)
 - [NIP-21: `nostr:` URL scheme](21.md)
@@ -51,6 +52,7 @@ NIPs stand for **Nostr Implementation Possibilities**. They exist to document wh
 | 3             | Contacts                         | [2](02.md)  |
 | 4             | Encrypted Direct Messages        | [4](04.md)  |
 | 5             | Event Deletion                   | [9](09.md)  |
+| 6             | Reposts                          | [18](18.md) |
 | 7             | Reaction                         | [25](25.md) |
 | 8             | Badge Award                      | [58](58.md) |
 | 40            | Channel Creation                 | [28](28.md) |