Textbook introduces the vocabulary and some highlights of elementary group theory. Emphasis is placed on concrete examples so that finite rotation groups and the 17 wallpaper groups are treated in detail alongside theoretical results. Over 300 exercises and some 60 illustrations. Annotation copyrigh[...]

I'M A PRETTY LITTLE BLACK GIRL introduces adorable Mia, who wakes with her hair just-a-going every which-a-ways With her abundant energy and joy leading the way, readers follow Mia as she plays with her friends who are all shades, shapes and sizes. There's tall Kia, Keisha the reader, Charlotte he[...]

For fans of "Percy Jackson and the Olympians," the thrilling conclusion to The Blackwell Pages, written by "New York Times "bestselling YA authors, K.L. Armstrong and M.A. Marr.
Thirteen-year-olds Matt, Laurie, and Fen have beaten near-impossible odds to assemble their fellow descendants of the [...]

"Seven kids, Thor's hammer, and a whole lot of Valkyries are the only things standing against the end of the world."
When thirteen-year-olds Matt Thorsen and Fen and Laurie Brekke, modern-day descendants of Thor and Loki, discovered they were fated to take the places of the Norse gods in an epic[...]

This classic work of recent philosophy was first published in 1968, and remains the most compelling and comprehensive statement of the view that the mind is material or physical. In "A Materialist Theory of the Mind," D. M. Armstrong provided insight into the debate surrounding the relationship of t[...]

David Armstrong's book is a contribution to the philosophical discussion about possible worlds. Taking Wittgenstein's Tractatus as his point of departure, Professor Armstrong argues that nonactual possibilities and possible worlds are recombinations of actually existing elements, and as such are use[...]

In Viking times, Norse myths predicted the end of the world, an event called Ragnarok that only the gods can stop. When this apocalypse happens, the gods must battle the monsters - wolves the size of the sun, serpents that span the seabeds - all bent on destroying the world. But the gods died a long[...]