The the suggested reading should cover most things well.
After that the only special fedora features are the RPM software packaging system, and the list of pre-built packages. Though, come to think of it, systemd subsystem is fairly unique, with unique bugs.
Nearly all linux distributions are equivalent for a general introduction.
Fedoras main claim to infamy is being one of the more cutting edge distributions, a very short support lifetime, and as the testing phase for packages selected for Red Hat Enterprise distributions and its derivatives (CentOS, Scientific Linux, and a few others).