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…
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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.