Recommended Reading

Qt 5 Docs

The State Machine Framework - http://qt-project.org/doc/qt-5.0/qtcore/statemachine-api.html

Signals and Slot - http://qt-project.org/doc/qt-5.0/qtcore/signalsandslots.html

The Event System - http://qt-project.org/doc/qt-5.0/qtcore/eventsandfilters.html

qmake Tutorial - http://qt-project.org/doc/qt-5.0/qtdoc/qmake-tutorial.html

Version Control with Git/GitHub

GitHub Help Documentation - https://help.github.com/

"Pro Git" book - http://git-scm.com/book

Doxygen

Documenting the Code - http://www.stack.nl/~dimitri/doxygen/manual/docblocks.html