diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -47,6 +47,7 @@ You can find all the books listed below in [**book**](/book) folder of this repo
 * Implementing Modern DevOps [[Download]](/book/Implementing%20Modern%20DevOps.pdf)
 * Infrastructure as Code (IAC) Cookbook [[Download]](/book/Infrastructure%20as%20Code%20%28IAC%29%20Cookbook.epub)
 * Infrastructure as Code (IAC) Cookbook [[Download]](/book/Infrastructure%20as%20Code%20%28IAC%29%20Cookbook.pdf)
+* Jenkins Essentials [[Download]](/book/Jenkins%20Essentials.pdf)
 * Learn Windows PowerShell 3 in a Month of Lunches [[Download]](/book/Learn%20Windows%20PowerShell%203%20in%20a%20Month%20of%20Lunches.pdf)
 * Learning Continuous Integration with Jenkins [[Download]](/book/Learning%20Continuous%20Integration%20with%20Jenkins.pdf)
 * Learning DevOps - Continuously Deliver Better Software [[Download]](/book/Learning%20DevOps%20-%20Continuously%20Deliver%20Better%20Software.pdf)
@@ -81,6 +82,7 @@ You can find all the books listed below in [**book**](/book) folder of this repo
 * PowerShell Succinctly [[Download]](/book/PowerShell%20Succinctly.pdf)
 * Practical DevOps [[Download]](/book/Practical%20DevOps.pdf)
 * Practical Microservices [[Download]](/book/Practical%20Microservices.epub)
+* Pro Bash Programming [[Download]](/book/Pro%20Bash%20Programming.pdf)
 * Pro Continuous Delivery - With Jenkins 2.0 [[Download]](/book/Pro%20Continuous%20Delivery%20-%20With%20Jenkins%202.0.pdf)
 * REST API Design Rulebook [[Download]](/book/REST%20API%20Design%20Rulebook.pdf)
 * Scala Microservices [[Download]](/book/Scala%20Microservices.azw3)
@@ -96,6 +98,7 @@ You can find all the books listed below in [**book**](/book) folder of this repo
 * tmux Taster [[Download]](/book/tmux%20Taster.pdf)
 * UNIX and Linux System Administration Handbook - Fifth Edition [[Download]](/book/UNIX%20and%20Linux%20System%20Administration%20Handbook%20-%20Fifth%20Edition.epub)
 * Unix Power Tools [[Download]](/book/Unix%20Power%20Tools.pdf)
+* Vagrant Virtual Development Environment Cookbook [[Download]](/book/Vagrant%20Virtual%20Development%20Environment%20Cookbook.pdf)
 * Windows PowerShell 3.0 First Steps [[Download]](/book/Windows%20PowerShell%203.0%20First%20Steps.pdf)
 * Windows PowerShell Cookbook [[Download]](/book/Windows%20PowerShell%20Cookbook.pdf)
 * Windows PowerShell in Action [[Download]](/book/Windows%20PowerShell%20in%20Action.pdf)
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