diff --git a/book/source/04-certificates.md b/book/source/04-certificates.md
index c73f079..24b4a09 100644
--- a/book/source/04-certificates.md
+++ b/book/source/04-certificates.md
@@ -251,13 +251,13 @@ Additionally, OpenPGP allows modeling User ID-specific preferences. The idea is
 
 ## A typical OpenPGP certificate, revisited
 
-Now that we've discussed how keys and identity components are linked together, we can have another look at the certificate from {numref}`fig-openpgp-certificate-components`. This time we include all of its binding signatures, as well as a direct key signature that contains metadata for the full certificate:
+Following our review of how keys and identity components are linked, let's reexamine the OpenPGP certificate from {numref}`fig-openpgp-certificate-components`. Our focus not extends to all of its binding signatures and the direct key signature that contains metadata for the full certificate:
 
 ```{figure} diag/OpenPGP_Certificate.png
 :name: fig-openpgp-certificate
-:alt: Depicts an OpenPGP certificate, including a set of components, binding signatures and a direct key signature on the primary key.
+:alt: Depicts an OpenPGP certificate, including a set of components, binding signatures, and a direct key signature on the primary key.
 
-A typical OpenPGP certificate, including binding signatures for all of its components, and a signature that associates metadata with the primary key
+This shows a typical OpenPGP certificate, including binding signatures for all of its components, and a signature that associates metadata with the primary key.
 ```
 
 ## Revocations