Apart from the tutorials on this blog there are a number of books/ebooks published on how to use Scrivener that can be purchased on Amazon.
Scrivener Absolute Beginner’s Guide, by Jennifer Ackerman Kettell
Scrivener For Dummies, by Gwen Hernandez
Your Guide To Scrivener: The Ultimate Tool For Writers, by Nicole Dionisio
Writing a Novel with Scrivener, by David Hewson
Scrivener for Writers (Apple Mac), by Ivan Pope
Scrivener for Writers (Windows), by Ivan Pope
How to Create an Ebook With Scrivener, by James Gill