Here’s a page from Adobe that features all kinds of videos from the basics to color correction to animating elements
Here’s my handout for basic editing techniques in Adobe Premiere.
The Kuleshov Effect is a well-documented concept in film-making, discovered by Soviet film editor Lev Kuleshov in the 1920s.
Here’s a handout for adding and manipulating images in the Premiere timeline.
It includes adding dissolves, changing scale, etc.