diff --git a/about.md b/about.md
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--- a/about.md
+++ b/about.md
@@ -334,6 +334,7 @@ layout: about
    - [L4CasADi](https://github.com/TUM-AAS/ml-casadi)
 5. Dynamics & Simulation or Animation
    - [Jolt Physics](https://github.com/jrouwe/JoltPhysics)
+   - [Peng: A minimal quadrotor pipeline in Rust](https://github.com/makeecat/Peng)
    - [RedMax](https://github.com/sueda/redmax)
    - [RigidBodyDynamics.jl](https://github.com/JuliaRobotics/RigidBodyDynamics.jl)
    - [RBDL](https://github.com/rbdl/rbdl)
diff --git a/booklist.md b/booklist.md
index 78c6165..5f3116d 100644
--- a/booklist.md
+++ b/booklist.md
@@ -7,6 +7,11 @@ author: "Jixiang Zhang"
 
 ### Paper reading
 
+* *Learning agile and dynamic motor skills for legged robots*: 作者 Hwangbo 同时开发了 RaiSim 仿真器和 RL 框架 👍👍👍
+
+  ![](images/eth_RL.jpeg)
+  ![](images/eth_training.jpeg)
+
 * CusADi
 
   ![](images/CusADi.png)
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