Here's a recommendation if you are interested in understanding the basics of turbine engines:

https://www.youtube.com/user/AgentJayZ

This guy, calling himself AgentJayZ, is a technician (not a designer) working on mostly older industrial and military jet engines, and he's showing a lot of the innards, and explaining a lot of the basics of operation of turbine engines. Also: Loads, and loads of footage of running engines in test-stands, which of course gets boring over time...