Harmon, Daniel E

An introduction to jobs related to Internet security, including network administrators, computer software programmers, and networks systems and data communications analysts, and describing the skills, knowledge, outlook, and habits required to achieve success as a professional.

"This book examines the many new methods of data collection, the rationale behind developing them, the pros and cons of developing these new technologies, and the difficulties of restricting the use of these technologies before laws can be passed to protect citizens from abuses"--Goodreads.

Examines the causes and symptoms of leukemia and discusses advancements in detection and treatment options and how people live with the disease.

A book for teens about finding career tracks in the fields of optometry and ophthalmology.

Text and color illustrations explore the history of astronomy, and the instruments, conclusions, and observations they drew on to explore outer space.

Offers teens practical advice on buying their first car, explaining how to budget for car payments, insurance, and other fees associated with car ownership, what to look for when choosing a car, how to keep it well maintained and running, and more.

A brief biography that introduces readers to the Green Bay Packers quarterback Aaron Rodgers.

"Millions of people are calorie-conscious. They measure the number of estimated calories contained in their meals primarily because they wish to lose weight or avoid gaining it. But many of these people miss the big picture, the fact that regular exercise is as important as caloric discipline. This book explains the ins and outs of calories for young children. It describes the sources of calories, daily calorie needs, the meaning of 'empty' calories, and the problems that can result if someone eats too many of them. Your readers will understand the need to balance caloric intake with exercise"--Provided by the publisher.

"Fatty foods are worrisome to health professionals and consumers alike, and for good reason. Obesity rates are alarming, and people of all ages struggle to control their weight. Many fail to understand, though, that fats are necessary for growth and for maintaining healthy bodies. They cushion and protect vital organs and store reserves of energy. This volume explains for young children both the positive and negative aspects of fat-containing foods. It differentiates the types of fats people consume, notes the links between fats and calories and fats and cholesterol, and addresses such issues as the dangers of dieting by fasting"--Provided by the publisher.