McWade, John. Graphic Design Tips and Tricks Weekly. Lynda.com.
Layout decision points, 2015.
Grid collage, 2015.
Soften the edge, 2015.
Note: The value of what McWade talks about in “Soften the Edge” is more than his examples suggest, which in addition to being targeted for marketing are also very clichéd. If you have a bothersome hard edge from a photo, then breaking it up with another image is a good idea; just be selective.