diff --git a/book/source/08-signing_components.md b/book/source/08-signing_components.md
index f40a34d..29415ac 100644
--- a/book/source/08-signing_components.md
+++ b/book/source/08-signing_components.md
@@ -160,7 +160,7 @@ The types of metadata typically associated with the primary key through these me
 (direct_key_signature)=
 #### Direct key signature
 
-A [*direct key signature*](https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-12.html#name-direct-key-signature-type-i) is one mechanism to store information about the primary key, and about the entire certificate.
+A [*direct key signature*](https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-12.html#name-direct-key-signature-type-i) serves as a key mechanism for storing information about the primary key and the entire certificate.
 
 In OpenPGP v6, a direct key signature is the [preferred mechanism](https://www.ietf.org/archive/id/draft-ietf-openpgp-crypto-refresh-12.html#section-5.2.3.10-9).