The Leading eBooks Store Online

for Kindle Fire, Apple, Android, Nook, Kobo, PC, Mac, BlackBerry...

New to eBooks.com?

Learn more
Browse our categories
  • Bestsellers - This Week
  • Foreign Language Study
  • Pets
  • Bestsellers - Last 6 months
  • Games
  • Philosophy
  • Archaeology
  • Gardening
  • Photography
  • Architecture
  • Graphic Books
  • Poetry
  • Art
  • Health & Fitness
  • Political Science
  • Biography & Autobiography
  • History
  • Psychology & Psychiatry
  • Body Mind & Spirit
  • House & Home
  • Reference
  • Business & Economics
  • Humor
  • Religion
  • Children's & Young Adult Fiction
  • Juvenile Nonfiction
  • Romance
  • Computers
  • Language Arts & Disciplines
  • Science
  • Crafts & Hobbies
  • Law
  • Science Fiction
  • Current Events
  • Literary Collections
  • Self-Help
  • Drama
  • Literary Criticism
  • Sex
  • Education
  • Literary Fiction
  • Social Science
  • The Environment
  • Mathematics
  • Sports & Recreation
  • Family & Relationships
  • Media
  • Study Aids
  • Fantasy
  • Medical
  • Technology
  • Fiction
  • Music
  • Transportation
  • Folklore & Mythology
  • Nature
  • Travel
  • Food and Wine
  • Performing Arts
  • True Crime
  • Foreign Language Books
Wide World Publishing, Tetra

Most popular at the top

  • Puzzles from Penrose the Mathematical Catby Theoni Pappas

    Wide World Publishing, Tetra 2013; US$ 9.95

    The famous mathematical cat Penrose takes us on a trip though puzzleland, while sharing fascinating and challenging puzzles in this uniquely designed mini book. Each page's puzzle is introduced by our star Penrose or one of his quirky friends. Readers are treated to page after page of Penrose antics and problems, while the over 100 mind teasers... more...

  • Numbers and Other Math Ideas Come Aliveby Theoni Pappas

    Wide World Publishing, Tetra 2012; US$ 10.95

    Most people don?t think about numbers, or take them for granted. For the average person numbers are looked upon as cold, clinical, inanimate objects. Math ideas are viewed as something to get a job done or a problem solved. Get ready for a big surprise with Numbers and Other Math Ideas Come Alive . Pappas explores mathematical ideas by looking behind... more...

  • 1
  • Page