Muggle book on 18th-century ballet

"A Muggle book on 18th century Ballet recommended by Myra Curio inspires you to apply techniques regarding balance to your spell casting. It results in an increase in the amount of damage you can inflict against Foes in combat."

- Description

This book was on the subject of Muggle 18th-century ballet dancing.

Sometime in the 2010s, Myra Curio of the Ministry of Magic's Muggle Liaison Office recommended this book to an Auror member of the Statute of Secrecy Task Force; it inspired them to apply (to great effect) the dance's balance techniques to spell-casting while in combat.