Download Scrivener FREE TRIAL (30 days of use) 3.0 for MAC. ( Or 1.0 for Windows):
https://www.literatureandlatte.com/scrivener/download

Video: Scrivener Overview

Handouts:
MAC shortcuts
Windows Shortcuts
Common Scrivener Tags for Novelists

Scrivener Manuals:
MAC manual 3.0

Scrivener 3.0 BETA for windows: (be advised, this is the BETA version and will have bugs/kinks.)
https://www.literatureandlatte.com/forum/viewtopic.php?t=40621

 

A Short video on SCAPPLE, a $15 brainstorming/ideas board software from the makers of Scrivener: Scapple overview