This high-level overview of Cascade shows you the basics of each area of the interface, familiarizing you with what you need to get started creating particle effects for UE4.
(00:04) - Toolbar and the Viewport
(03:15) - The Emitter List and Emitter Tips
(06:26) - The Curve Editor
(09:24) - Curve types
A link to the wiki for further notes is available here -