diff --git a/source/PreseasonTraining/index.md b/source/PreseasonTraining/index.md
index cd967ba..e6ce955 100644
--- a/source/PreseasonTraining/index.md
+++ b/source/PreseasonTraining/index.md
@@ -30,4 +30,31 @@ ControlTheoryBasics/index.md
 * [2024 September 24 - Coding an autonomous routine](TankAutonomous/index.md)
 * [2024 September 25 - Electrical overview](ElectricalOverview/index.md)
 * [2024 October 1/2 - Linux installation](LinuxInstallation/index.md)
-* [2024 October 8/9 - OpenCV-based segmentation](OpenCV_ColorSegmentation/index.md)
\ No newline at end of file
+* [2024 October 8/9 - OpenCV-based segmentation](OpenCV_ColorSegmentation/index.md)
+* [2024 October 22/23 - Control theory basics, using PID controller](ControlTheoryBasics/index.md)
+
+## Index by topic
+
+### Introductory programming
+
+* [2024 September 4 - LED programming](LEDProgramming/index.md)
+* [2024 September 10 - Java introduction, inventory manager](JavaBasics/InventoryManager.md)
+* 2024 September 11
+  * We split up into two groups
+  * [easy task - Wordle clone](JavaBasics/WordleClone.md)
+  * [harder task - Brainf interpreter](JavaBasics/BrainfInterpreter.md)
+
+### Robot control
+
+* [2024 September 17/18 - FRC Java introduction, tank drive simulation](TankDriveSimulation/index.md)
+* [2024 September 24 - Coding an autonomous routine](TankAutonomous/index.md)
+* [2024 October 22/23 - Control theory basics, using PID controller](ControlTheoryBasics/index.md)
+
+### Computer vision
+
+* [2024 October 8/9 - OpenCV-based segmentation](OpenCV_ColorSegmentation/index.md)
+
+### Miscellaneous
+
+* [2024 September 25 - Electrical overview](ElectricalOverview/index.md)
+* [2024 October 1/2 - Linux installation](LinuxInstallation/index.md)