For over 200 years, France was inundated with small cheaply produced books, bound with blue covers, filled with some of the most amazing things. These were the Bibliothèque bleue. Lots of these books would be about food, or fairy-tales, or astrology. Yet the most notorious of the Bibliothèque bleue, were the books on Magic, charms and spells. These are called Blue Grimoires today. Helping us get our fingers inky with why these small chapbooks were so important to magic, is author and magician Aaman Lamba.