Seasons of Wicca is a good resource for those looking to broaden their ritual collection.
Paganism for Beginners by Althaea Sebastiani is a refreshing book meant for those new to any pagan path with a focus on spirituality instead of spellwork.
Harmony is a wonderful human being, but her book really fell short for me. There were a few things that I did like about the book, so I'll talk about those first.
This book was recommended to me by a fellow Wiccan when I was searching for a book that went deeper than your typical "Wicca 101". For the most part, it does the job. This book gave me high hopes when, in the introduction, the following quote was written.