Llewellyn’s Sabbat Essentials series contains eight small books, one for each Sabbat in the pagan Wheel of the Year. The author varies by Sabbat with no author having more than two books in the series. Imbolc: Rituals, Recipes, and Lore for Brigid’s Day was written by Carl F. Neal. Neal is not an author with whom I am familiar; researching him it appears that his area of expertise is incense.
The standard sections in the Sabbat Essentials books are: Old Ways, New Ways, Spells and Divination, Recipes and Crafts, Prayers and Invocations, Rituals of Celebration, Correspondences, and Further Reading. There is also a Series Introduction that is the same in all eight books, so I won’t review it aside from saying that it is worth reading over annually. It also has two really beautiful Wheel of the Year illustrations, one for the Northern Hemisphere and one for the Southern Hemisphere, which is worth copying into your Book of Shadows.
The Old Ways section is as interesting as always, and contains a lot of helpful information about the history of the Sabbat. The section discusses what winter meant to people throughout history, and why that meaning makes Imbolc so important. Roman, Egyptian, Native American, and Asian traditions are discussed, as well as Celtic traditions and the goddess Brigid. The New Ways section discusses the difficulties of the Sabbat, and Brigid’s importance to Imbolc as well as modern paganism. Secular holidays are examined, and there is a brief examination of activities that can be done during the Imbolc season. Both of these section are quick overviews.