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  • The Poisoned Pen

    Kennedy's suit-case was lying open on the bed, and he was literally throwing things into it from his chiffonier, as I entered after a hurried trip up-town from the Star office in response to an urgent message from him. "Come, Walter," he cried, hastily stuffing in a package of clean laundry without taking off the wrapping-paper, "I've got your suit-case out. Pack up whatever you can in five ... Read more

    $6.29 USD or Free with Kobo Plus

  • Secrets of Mental Math

    The Mathemagician's Guide to Lightning Calculation and Amazing Math Tricks

    These simple math secrets and tricks will forever change how you look at the world of numbers.Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your friends—and yourself—with incredible calculations you never thought you could master, as renowned “mathemagician” Arthur Benjamin shares his techniques for lightning-quick calculations and amazing number ... Read more

    $4.99 USD

  • The Magic of Math

    Solving for x and Figuring Out Why

    The world's greatest mental mathematical magician takes us on a spellbinding journey through the wonders of numbers (and more)"Arthur Benjamin . . . joyfully shows you how to make nature's numbers dance." -- Bill Nye (the science guy)The Magic of Math is the math book you wish you had in school. Using a delightful assortment of examples-from ice-cream scoops and poker hands to measuring mountains ... Read more

    Was $14.99 USD Now $1.99 USD

  • How to Win

    A Mathematical Approach to Games and Puzzles

    A New York Times bestselling mathematician reveals how math can take your game playing and puzzle solving to the next level.“A thrilling tour of all the ways you can win with math.” —Matt Parker, author of the international bestseller Humble Pi“A winning book by a winning personality.” —Ben Orlin, author of Math Games with Bad Drawings... ... Read more

    $18.99 USD

  • From Newton to Einstein - The Changing Conceptions of the Universe

    Essays on Relativity, Spacetime, Gravitation, and the Transformation of Modern Physics

    From Newton to Einstein—The Changing Conceptions of the Universe charts one of modernity's most consequential intellectual transformations: the passage from a universe governed by Newtonian absolutes to one structured by relativity, fields, and newly unsettled notions of space and time. Bringing together exposition, philosophical reflection, scientific argument, and historical overview, the volume ... Read more

    Was $1.99 USD Now $0.99 USD or Free with Kobo Plus

  • Best Nordic Ski Great Escapes 2024

    Best Nordic Ski Great Escapes 2024 is a high-quality and beautifully designed unique, one-of-a-kind annual travel resort guide for cross-country skiers featuring top spots across North America. From 5-star to rustic resorts it covers trails, lodging, dining, attractions and more. A must for all passionate and committed cross-country skiers who are eager to discover countless new trails as they ... Read more

    $5.95 USD or Free with Kobo Plus

  • The Fascinating World of Graph Theory

    The history, formulas, and most famous puzzles of graph theoryGraph theory goes back several centuries and revolves around the study of graphs—mathematical structures showing relations between objects. With applications in biology, computer science, transportation science, and other areas, graph theory encompasses some of the most beautiful formulas in mathematics—and some of its most famous ... Read more

    $17.29 USD

  • Global Perspectives on the Definition, Assessment, and Reduction of Bias and Unfairness in Employment Testing

    Series series Educational and Psychological Testing in a Global Context
    The use of tests and assessments in employment-related decision making has the potential to benefit organizations and individuals. However, their use is frequently criticized because of their adverse potential for bias and unfairness. Although issues pertaining to employment testing, bias, and unfairness are extensively researched and written about, previous work has predominately focused on ... Read more

    $65.59 USD

  • The Treasure Collector

    by David Zeltser ...
    Illustrated by Benjamin Arthur ...
    A funny, quirky tale of friendship, values, and stuff, featuring a remarkable and evolving friendship between a racoon and a starfishEvery night, Reginald goes on the hunt. He loves stuff. All kinds of stuff. To us, it might look like junk, but to Reginald, it's treasure! His most valued treasure of all is a label maker—how else is he supposed to identify each item in his collection?And then one ... Read more

    $14.39 USD

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  • The Dream Doctor

    Jameson, I want you to get the real story about that friend of yours, Professor Kennedy," announced the managing editor of the Star, early one afternoon when I had been summoned into the sanctum. From a batch of letters that had accumulated in the litter on the top of his desk, he selected one and glanced over it hurriedly. "For instance," he went on reflectively, "here's a letter from a Constant ... Read more

    $6.29 USD or Free with Kobo Plus

  • The Film Mystery

    A CAMERA CRIME "Camera!" Kennedy and I had been hastily summoned from his laboratory in the city by District-Attorney Mackay, and now stood in the luxurious, ornate library in the country home of Emery Phelps, the banker, at Tarrytown. "Camera!—you know the call when the director is ready to shoot a scene of a picture?—well—at the moment it was given and the first and second camera men began to ... Read more

    $6.29 USD or Free with Kobo Plus

  • The Social Gangster

    I'm so worried over Gloria, Professor Kennedy, that I hardly know what I'm doing." Mrs. Bradford Brackett was one of those stunning women of baffling age of whom there seem to be so many nowadays. One would scarcely have believed that she could be old enough to have a daughter who would worry her very much. Her voice trembled and almost broke as she proceeded with her story, and, looking closer, I ... Read more

    $6.29 USD or Free with Kobo Plus