His memories are clouded, except for images of glass and metal. He quickly finds that he’s not alone in this new realm. There are others who all arrived just as he did. In this strange world, people are driven by survival against forces that have little interest in continued human existence. But through the use of special tomes known as 'grimoires,' people are able to enhance themselves to increase their abilities and 'life properties,' giving them a fighting chance against the monsters that surround them. Without a chance to acclimate himself, Chaxin is thrown into a bloody confrontation with monsters born of nightmares. He soon realizes that one false step could mean his death. But death isn’t the worst that the Graymos has to offer. Can he survive in such an unforgiving world? If not, more than just his life could be at stake. Grimoire Bound is a LitRPG-Lite novel, inspired by Dark Souls, Lovecraft and Grimgar of Fantasy and Ash.

    Yet the mathematical language of symmetry-known as group theory-did not emerge from the study of symmetry at all, but from an equation that couldn't be solved. For thousands of years mathematicians solved progressively more difficult algebraic equations, until they encountered the quintic equation, which resisted solution for three centuries. Working independently, two great prodigies ultimately proved that the quintic cannot be solved by a simple formula. These geniuses, a Norwegian named Niels Henrik Abel and a romantic Frenchman named Évariste Galois, both died tragically young. Their incredible labor, however, produced the origins of group theory. The first extensive, popular account of the mathematics of symmetry and order, The Equation That Couldn't Be Solved is told not through abstract formulas but in a beautifully written and dramatic account of the lives and work of some of the greatest and most intriguing mathematicians in history.

    With his trademark clarity and humor, Holt probes the mysteries of quantum mechanics, the quest for the foundations of mathematics, and the nature of logic and truth. Along the way, he offers intimate biographical sketches of celebrated and neglected thinkers, from the physicist Emmy Noether to the computing pioneer Alan Turing and the discoverer of fractals, Benoit Mandelbrot. Holt offers a painless and playful introduction to many of our most beautiful but least understood ideas, from Einsteinian relativity to string theory, and also invites us to consider why the greatest logician of the twentieth century believed the U.S. Constitution contained a terrible contradiction--and whether the universe truly has a future.