Divination guide by famous seer Cassandra Vablatsky.
- Required textbook for Divination in Harry's third year (PA4).
- The manager at Flourish and Blotts described it as a "very good guide to all your basic fortune-telling methods - palmistry, crystal balls, bird entrails."
- Pages 5 and 6 show patterns one might see in reading tea leaves (PA6).
- Ron and Harry were still using it as a reference book when working on Divination essays the following year, although perhaps not quite as their teacher intended (GF14).
The book's author, Cassandra Vablatsky, appears on a Famous Wizard card (FW).