diff --git a/book/source/02-highlevel.md b/book/source/02-highlevel.md
index dbca060..1f2f815 100644
--- a/book/source/02-highlevel.md
+++ b/book/source/02-highlevel.md
@@ -71,17 +71,17 @@ Today, multiple implementations of OpenPGP play important roles:
 ### OpenPGP version 6
 
 As of this writing (in 2023), [version 6 of OpenPGP](https://datatracker.ietf.org/doc/draft-ietf-openpgp-crypto-refresh/) is approaching publication as an RFC.
-The IETF working group's [charter](https://datatracker.ietf.org/wg/openpgp/about/#autoid-1) centers around updating the cryptographic mechanisms, adding new algorithms, and deprecation of obsolete algorithms.
+The [IETF OpenPGP working group](https://datatracker.ietf.org/wg/openpgp/about/#autoid-1) is focused on updating the cryptographic mechanisms, adding new algorithms, and the deprecation of obsolete algorithms.
 
 This document describes OpenPGP version 6, while pointing out differences to previous versions that are relevant to application developers.
 
-Significant work on support for OpenPGP version 6 has already been done for multiple implementations, including:
+Significant support for OpenPGP version 6 has already been achieved for multiple implementations, including:
 
-- [GOpenPGP](https://github.com/ProtonMail/gopenpgp/tree/v3),
+- [GopenPGP](https://github.com/ProtonMail/gopenpgp/tree/v3),
 - [OpenPGP.js](https://github.com/openpgpjs/openpgpjs/tree/v6),
 - [PGPainless](https://github.com/pgpainless/pgpainless/milestone/6),
 - [PGPy](https://github.com/dkg/PGPy/tree/dkg/crypto-refresh),
-- [Sequoia-PGP](https://gitlab.com/sequoia-pgp/sequoia/-/tree/crypto-refresh).
+- [Sequoia PGP](https://gitlab.com/sequoia-pgp/sequoia/-/tree/crypto-refresh).
 
 ### Post-Quantum Cryptography in OpenPGP