One of the key ideas in computer science is abstraction—using simple interfaces to manage complex procedures. See how functions can simplify away the details of complex process, freeing attention to focus on what goes into a function and what comes out. Learn when to use functions and the side effects that sometimes occur.

Expand your study of algorithms to cover recursion, one of the most fascinating ideas in computer science. Apply recursion to form a pair of sorting algorithms. Then see how another approach, iteration, excels at tasks that take too long with recursion, such as calculating the Fibonacci sequence.

Learn about an exciting approach to programming called object-oriented design, which bundles functions together with data into a series of objects, whose tools and properties can be defined in a single class. Try your hand at this powerful technique by constructing a bank account program.

Python makes it very easy to create lists and perform a wide range of operations on them. Learn the fundamentals of building lists. Then experiment with indexing into lists, looping over lists, and making slices of lists, lists of lists, and list-like structures called tuples.

Introduced in 2009, Minecraft* has become an enormous success with gaming kids and adults. Users love exploring and building within Minecraft's mind-bogglingly large environments. This game allows users to practice STEM skills while having fun. One of its greatest strengths is its ability to teach coding principles with "redstone" blocks. These blocks can be used to make exciting machines and devices in Minecraft's virtual world. With this volume,...

One night Chick hops onto the farmer's house and has a browse on his computer - click - soon she's shopping online for the whole farm! But when she arranges to meet up with a friend she's made online, she discovers all is not as it seems ... Little Red Riding Hood for the iPad generation, this is the perfect book for teaching children how to stay safe online.

It is estimated that 2 billion people use social media. With so many users, the language of social media makes it quick and easy for people to communicate. Learn more about the words, acronyms, GIFs, memes, and emoji that will have you communicating on social media like a pro! Featuring TIME For Kids content, this nonfiction reader includes detailed photos and sidebars, stimulating facts, and clear, informational text to engage students as they build...

The most comprehensive guide to Windows 10! If you're a first-time Windows 10 user looking for an authoritative, accessible guide to the basics of this new operating system, look no further than Windows 10 All-in-One For Dummies. Written by trusted Windows expert Woody Leonhard, this all-encompassing guide cuts through confusing jargon and covers just what you need to know: navigating the start menu, personalizing Windows, working with the desktop,...

Survey the U.S. intelligence community as a whole. Find out how it is structured, how it functions, and how it relates to the rest of the government. Review its methods of gathering and analyzing intelligence, including some of the key challenges in the process.

With the pervasiveness of government and corporate surveillance, some people feel the urge to go off the grid. This lecture explores the benefits and challenges of anonymity for individuals and for society, delving into issues such as the freedom of political speech and the privacy of personal searches and communication. Take a look at two tools people use in pursuit of Internet anonymity: TOR networks and Bitcoin currency.