diff --git a/docs/books/admin_guide/01-presentation.md b/docs/books/admin_guide/01-presentation.md
index 2e6c5fcd12..a2369e3dab 100644
--- a/docs/books/admin_guide/01-presentation.md
+++ b/docs/books/admin_guide/01-presentation.md
@@ -20,8 +20,7 @@ In this chapter you will learn about GNU/Linux distributions.
 :checkered_flag: **generalities**, **linux**, **distributions**
 
 **Knowledge**: :star:  
-
-**Complexity**: :star:
+**Complexity**: :star:  
 
 **Reading time**: 10 minutes
 
diff --git a/docs/books/learning_ansible/07-working-with-filters.md b/docs/books/learning_ansible/07-working-with-filters.md
index a1d6338596..f4c963a012 100644
--- a/docs/books/learning_ansible/07-working-with-filters.md
+++ b/docs/books/learning_ansible/07-working-with-filters.md
@@ -17,8 +17,8 @@ In this chapter you will learn how to transform data with jinja filters.
 
 :checkered_flag: **ansible**, **jinja**, **filters**
 
-**Knowledge**: :star: :star: :star:
-**Complexity**: :star: :star: :star: :star:
+**Knowledge**: :star: :star: :star:  
+**Complexity**: :star: :star: :star: :star:  
 
 **Reading time**: 20 minutes
 
diff --git a/docs/books/learning_bash/01-first-script.md b/docs/books/learning_bash/01-first-script.md
index 3be0523656..6527f8642f 100644
--- a/docs/books/learning_bash/01-first-script.md
+++ b/docs/books/learning_bash/01-first-script.md
@@ -23,8 +23,8 @@ In this chapter you will learn how to write your first script in bash.
 
 :checkered_flag: **linux**, **script**, **bash**
 
-**Knowledge**: :star:
-**Complexity**: :star:
+**Knowledge**: :star:  
+**Complexity**: :star:  
 
 **Reading time**: 10 minutes