Greg Roza

"Judo is a grappling martial art first established in Japan. Instead of punching and kicking, judo practitioners use their opponent's movements against them. They strive to take their opponent to the ground using grappling, throws, and sweeps. They may also use chokes and joint locks to make an opponent "tap out." Competitive judo has a long tradition, and it's an Olympic sport. Readers will learn about judo's rich history, its basic moves, and how...

The night sky seems so constant. In reality, stars are being born, burning, and dying all the time. There's just so many of them, and they're so far away that we barely notice without the help of sophisticated scientific tools such as the Hubble Space Telescope. In this book, budding astronomers will learn about the life cycle of a star. They'll read how stars differ and how our sun compares to some of these stars. Incredible, colorful photographs...

Mixed Martial Arts has just recently gained widespread popularity in American culture, but MMA has been around for many years. Muay Thai is just one of many disciplines of MMA. Originating in Thailand, the name loosely translates to "art of the eight limbs." Though it may appear violent to some from its depictions on TV, the fighting technique is greatly used for self-defense, exercise, and personal discipline. With a brief history and overview of...

One's knowledge of emergency lifesaving techniques can mean the difference between a close-call and a tragic fatality. With more and more kids involved in extreme sports, organized sports, skiing, hiking, skateboarding, rock climbing, canoeing and rafting, mountain biking, surfing, and other risky activities, it is imperative that they learn how to stay safe and treat themselves and others in the event of an accident. Covering everything from broken...

Every gearhead bike enthusiast will love this title for its rich history of the legacy brand known as Harley-Davidson. This title profiles some of the company's most iconic models, from the debut 1911 Model 7D to today's sleek and modern VRSCA V-Rod. Readers can immerse themselves in details such as horsepower, torque, transmission types, exhaust systems, wheelbase measurements, and speed. For more info, there is also a spec sheet on each model. The...

This mesmerizing volume illustrates patterns and symmetry through the consideration of famous optical artists, Islamic art, and the examination of prominent optical paintings. Includes photographs of Islamic mosques that illustrate tessellations, Maurit Escher's "Liberation," and an extensive glossary of shape terminology.

Makerspaces are all about teaching through collaboration. This title grabs the attention of young people who are musically as well as technically inclined by showing them that they can make their own instruments-literally. Recent technologies such as 3-D printing and Arduino microcontrollers allow virtually anyone to make a fully functioning instrument. This resource shows young people exactly how to take advantage of the burgeoning makerspaces phenomenon...

Some of the most important contributors to the food chain are those creatures that help break things down: decomposers. If not for these birds, bugs, and worms organic matter couldn't be recycled back into nature. Readers will discover the different kinds of decomposers, how they do their job, and why it is so important. This fascinating book includes graphic organizers and annotated illustrations to better explain the food chain.

Even when they try to relax, the Power Coders get swept up in a coding challenge! While on the way to a local park, Tommy explains to the Power Coders that his brother, Evan, is making a robot for a "battle bot" competition. Evan may know how to build a robot, but can he create the code needed to make it work? He will after the Power Coders lend him a hand. Readers will enjoy the Power Coders' latest coding challenge, which includes a glimpse into

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Outkast burst upon the national scene with their joyous, giddy, and insanely infections single "Hey Ya!" in 2003. Yet Outkast's duo of Andre 3000 and Big Boi had been recording their unique and inimitable brand of hip-hop, spiced with tantalizing dashes of funk, soul, rock, pop, jazz, blues, and electronic music since 1992. In fact, the album from which "Hey Ya!" was drawn was Outkast's fifth full-length record. The video for the song, as well as...