Like Louise Gluck's poetry, her prose in these essays on poetry are concise, insightful, crisp and deeply intelligent. Each one offered me something useful as a poet, teacher, and/or person. There's the spark of recognition in what she has to say about her own process as a writer and in her interpretations and close readings of particular poems and poets. She can be brave, too, in making cases for the usually (or temporarily) spurned, like impoverishment/passivity and sincerity (versus truth).
There's nothing like reading a great book/collection on craft and feeling re-energized and compelled to write. This book did that for me.