This short pamphlet explores some of the central figures in Germanic and early Anglo-Saxon religion, such as the Mother Goddess, old Norse gods like Woden, and Tiw and Thunor. Kathleen Herbert looks at their mention in various sources and also includes sections on the heathen calendar, old folk songs and more besides.
My only complaints are with this book's short length, and that some information is repeated from other books from the same publisher (such as those by Stephen Pollington). As such, this is almost anecdotal, and only really useful for those who already have a deep interest in the era.