I find most personality typing schemes dubiously ornate, but hers is a simple logic map: do you tend to resist or uphold expectations, internal and/or external? gretchenrubin.com/books/the-four…
others will only chafe, ignore, or resent your attempts to do so.
it's just really useful to know what motivates people when you're in a coaching role.
"The Four Tendencies", by Gretchen Rubin. quick and easy read, five stars.