diff --git a/book/source/04-certificates.md b/book/source/04-certificates.md
index 0e0fcc0..17451ee 100644
--- a/book/source/04-certificates.md
+++ b/book/source/04-certificates.md
@@ -10,6 +10,14 @@ OpenPGP fundamentally hinges on the concept of "OpenPGP certificates," also know
 
 An OpenPGP certificate, by definition, does not contain private key material.
 
+Fundamentally, the effective management of certificates and a thorough grasp of their authentication and trust models are crucial for proficient OpenPGP usage. Although this document offers just a brief overview of these aspects, they form a fundamental part of the broader OpenPGP framework and warrant further study.
+
+- For an in-depth exploration of OpenPGP's private key material, refer to {ref}`private_key_chapter`. This chapter provides essential insights into private key management and security practices.
+
+- The bindings that link the components of a certificate are comprehensively discussed in {ref}`component_signatures_chapter`, offering a deeper understanding of certificate structure and integrity.
+
+- For a detailed analysis of the internal (packet) structure of certificates and keys, our chapter {ref}`zoom_certificates` can serve as an invaluable resource.
+
 ## Terminology: Understanding "keys"
 
 The term "(cryptographic) keys" is central to grasping the concept of OpenPGP certificates. However, it can refer to different entities, making it a potentially confusing term. Let's clarify those differences.
@@ -28,14 +36,6 @@ In OpenPGP, the term "key" may refer to three distinct layers, each serving a un
 
 The following section will delve into the OpenPGP-specific layers (2 and 3) to provide a clearer understanding of their roles within OpenPGP certificates.
 
-Fundamentally, the effective management of certificates and a thorough grasp of their authentication and trust models are crucial for proficient OpenPGP usage. Although this document offers just a brief overview of these aspects, they form a fundamental part of the broader OpenPGP framework and warrant further study.
-
-– For an in-depth exploration of OpenPGP's private key material, refer to {ref}`private_key_chapter`. This chapter provides essential insights into key management and security practices. 
-
-– The bindings that unify the components of a certificate are comprehensively discussed in {ref}`component_signatures_chapter`, offering a deeper understanding of certificate structure and integrity. 
-
-– For a detailed analysis of the internal (packet) structure of certificates and keys, our chapter {ref}`zoom_certificates` can serve as an invaluable resource. 
-
 ## Structure of OpenPGP certificates
 
 An OpenPGP certificate (or "OpenPGP key") is a collection of an arbitrary number of elements[^packets]: