My favorite part of this book is that it's do-able. Richardson gives brief daily readings that don't overwhelm you with content and gives you a daily task to implement (determine what is a "definite yes" to you, organize your ideal work space, etc.) The tasks are all worth pursuing. But after a while, I found myself just reading the daily reading and not really implementing anything. I didn't feel like I was building up a habit of self-care, so much as learning about 21 possible different activities for self-care. I'm not sure entirely what the difference is, but by the end of the 21 days I didn't feel like I had learned a new habit. And I'm not sure what makes these activities indicative of "extreme" self-care. I enjoyed the book and have new ideas about things to do for self-care but for me, the title over-promises what the book actually delivered.