Harleen by Stjepan Šejić. This one took me by surprise. A very good and complex retelling of Harley Quinn's beginnings. Her relationship to the Joker is especially interesting. The book strikes a good balance between showing why it's far from a healthy relationship and how she can believe it is. Much like Batman's trauma, it's hard decide wether it's made her free or in a cage: in her quest/hope to cure a person (and perhaps herself) who's essentially a big bad wolf. Stjepan has made a really good job making sure there's no straight up answer to this, and without her loosing her agency --even when she's loosing it.
I'd also like recommend the youtube channel The deluxe version's fantastic job presenting the beauty of the hardcover edition of the book https://www.youtube.com/watch?v=-3mW6jKzX3U
I'd also like recommend the youtube channel The deluxe version's fantastic job presenting the beauty of the hardcover edition of the book https://www.youtube.com/watch?v=-3mW6jKzX3U