A user-friendly but comprehensive malfunctions summary, on one page...
A great series by SDC Rhythm 4-way team taking the new jumper through all the basics you need to know.
Rhythm describes what you should think about when visiting a DZ for the first time. Calling ahead, taking docs, renting gear, safety brief and more.
Next video: Dive Preparation
Video 3: Gearing up
Video 4: Gear checks in the plane