The Raven S Hat

The Raven's Hat

Try to solve a series of unusual math games in this playful, illustrated guide that breaks down important math concepts for everyday adult readers. “A wonderful book for someone who likes mathematics and likes to be challenged!” —Chris Bernhardt, author of Quantum Computing for Everyone This book presents a series of engaging math games that seem unsolvable—but can be solved when they are translated into mathematical terms. How can players find their ID cards when the cards are distributed randomly among twenty boxes? By applying the theory of permutations. How can a player guess the color of her own hat when she can only see other players’ hats? Hamming codes, which are used in communication technologies. Like magic, mathematics solves the apparently unsolvable. Featuring a wide range of mathematics, these games allow anyone, including university students and anyone with high school-level math, to experience the joy of mathematical discovery.

The Raven Scholar

“A labyrinth of a book—vast and intricate, full of fiendish twists and clever traps—with a deeply human heart at its center. It's thrilling, romantic, often tragic, and always funny; I'm obsessed.” —Alix E. Harrow, New York Times bestselling author of Starling House The Raven Scholar is a masterfully woven tale of imperial intrigue from an electrifying new voice in epic fantasy—in a stunning edition featuring French flaps and silver foiled cover effects! Let us fly now to the empire of Orrun, where after twenty-four years of peace, the reign of Bersun the Brusque has come to an end. In the dizzying heat of midsummer, seven exceptional warriors, thinkers, strategists compete to replace him. When one of them is murdered, it falls to Neema Kraa, the emperor’s brilliant, idiosyncratic High Scholar, to find the killer and fight for the throne. Neema believes she is alone. But we are here to help; all she has to do is let us in. If she succeeds, we will win an empire. If she fails, death awaits her. But we won’t let that happen. We are the Raven, and we are magnificent. ★ "Sharply written and intricately plotted. A masterclass in storytelling!" —Ann Leckie, Hugo Award-winning author of Ancillary Justice ★ "Fiendishly charming and clever, this is a book you absolutely must devour." —Tasha Suri, World Fantasy Award-winning author of The Jasmine Throne ★ "The Raven Scholar is as clever as its namesake—each beloved character, each twist and each turn, is a shiny new gift. It is magnificent." —C. L. Clark, author of The Unbroken ★ "Epic fantasy at its finest—fiendish political intrigue, the ultimate trial for the throne and a shocking crime at the center. Simply glorious!" —Georgia Summers, author of The City of Stardust ★ "Engrossing and unputdownable...my favorite read of the year. A conflagration of court intrigue, religious folktale, and characters with deliciously murky motivations, The Raven Scholar is a pure delight." —Bethany Jacobs, Philip K. Dick Award-winning author of These Burning Stars

The Pima Indians