diff --git a/Installation.md b/Installation.md
index 0ce528d..7016ad6 100644
--- a/Installation.md
+++ b/Installation.md
@@ -6,14 +6,14 @@ Run command line as administrator, the installation commands is
 
 ```shell
 tlmgr option repository http://mirror.ctan.org/systems/texlive/tlnet
-tlmgr install elegantnote
+tlmgr install elegantbook
 ```
 
 If you want to update or uninstall package, you can use 
 
 ```shell
-tlmgr update elegantnote
-tlmgr uninstall elegantnote 
+tlmgr update elegantbook
+tlmgr uninstall elegantbook 
 ```
 
 ## Package Mananger Method
@@ -32,7 +32,7 @@ Load standard net repository: http://mirror.ctan.org/systems/texlive/tlnet
 
 type the package name in the blank, and select the package you want to install/update/uninstall and click the action you wish.
 
-![tlmgr](https://elegantlatex.org/image/tlmgr-note.png)
+![tlmgr](https://elegantlatex.org/image/tlmgr-book.png)
 
 Complete.