Manual de Lubuntu

Está en inglés, pero espero les sirva a kienes como yo estamos empezando en esto :)

Chapter 1 Installing Lubuntu
    Chapter 1.1 Retrieving the image
    Chapter 1.2 Booting the Image
    Chapter 1.3 Installation
Chapter 2 Applications
    Chapter 2.1 Internet Applications
    Chapter 2.2 Office Applications
    Chapter 2.3 Graphics Applications
    Chapter 2.4 Accessories
    Chapter 2.5 Sound and Video
Chapter 3 System Tools and Preferences
    Chapter 3.1 System Tools
    Chapter 3.2 Preferences
Chapter 4 Installing, Updating, and Removing Software
    Chapter 4.1 Discover Software Center
    Chapter 4.2 Muon Package Manager
    Chapter 4.3 Managing Software Sources
Chapter 5 Panel, Desktop, and Runner
    Chapter 5.1 LXQt Panel
    Chapter 5.2 Desktop Icons
    Chapter 5.3 Runner
    Chapter 5.4 Window Management
    Chapter 5.5 Keyboard Menu Navigation
Appendix A Tips and Tricks
Appendix B Contributing
Appendix C Command line
Appendix D Upgrading from previous releases
Appendix E Live Session
Appendix F Hotkeys shortcuts

Enlace :

https://manual.lubuntu.me/stable/