This short work is a fine moulding of a traditional yet quite modern view of witchcraft into the game mechanics of Swords & Wizardry, enabling the creation and play of a witch character within the game.
There is a lot of background material crammed in, for being a witch is a lot more than learning a handful of spells and finding yourself a familiar. It's a philosophy, a religion, a way of life - and this is mirrored here, along with the necessary rules information that you'll need to create a character. The Aiséiligh Tradition puts a contemporary spin on the class, reflecting how present-day real world witches seek to re-establish and maintain former beliefs in a world that's a mix of very hidebound faiths intolerant of other beliefs and many who do not acknowledge the existence of deities at all.
There are some neat new spells, again encapsulating modern traditions yet keeping hold of the concepts that normally spring to mind when you say 'witch'... especially when you are thinking in game terms. It's interesting to read and exciting to play, especially if you enjoy getting in touch with your feminine side but see no reason for that to mean that your character is weak or subservient: these are strong yet feminine women. A nice addition to this game.