What is McMahon’s profession? Does that make him more or less believable?in pursuit of unhappiness

What is the difference between a major and a minor character? a major character has a less important story line, while a minor character plays a bigger role in the plot. a major character plays a big role in the plot, while a minor character has a less important story line. a major character has an unimportant story line in the plot. a minor character's story line is as important and developed as the major characters' story lines.

What is the central idea in this advice from branch rickey to jackie robinson?  

What do technical writers need to do when using an image?