Systems Science

Developed by experienced professors and professionally narrated for easy listening, this course is a great way to explore the anatomy and physiology of the human circulatory system. The audio is focused and high-yield, covering the most important topics you might expect to learn in a typical graduate-level anatomy and physiology course. The material is accurate, up-to-date, and broken down into bite-sized chapters. There are key takeaways following each chapter to drive home key points and quizzes to review commonly tested questions.

Most people are stuck in straight-line thinking. They see problems in isolation, chase quick fixes, and treat outcomes as immediate and unconnected. But the real world doesn’t work that way—it runs on systems. Interconnected causes, delayed effects, feedback loops, hidden incentives, and ripple consequences drive everything around us. This audiobook rewires your brain for systems thinking—one powerful shift at a time. You’ll get 100 clear, actionable strategies.

Classic Fantasy Tales of Robert E. Howard gathers some of the most powerful and influential tales of sword-and-sorcery ever written, showcasing Conan the Cimmerian at the height of his mythic legend.

Build Profitable AI-Powered Products, Services, and Automations—Without the Overwhelm If you’ve been curious about using AI to start or grow your business but feel lost in the sea of tools, tech jargon, and hype, you’re not alone. The truth is, you don’t need coding skills, expensive consultants, or months of trial and error to create something that sells. The ChatGPT-5 Business Blueprint is your step-by-step guide to turning AI into your most reliable business partner—whether you want a $1,000-a-month side hustle or a $10K+ scalable venture.

Despite being immensely popular - and immensely lucrative - education is grossly overrated. In this explosive book, Bryan Caplan argues that the primary function of education is not to enhance students' skill but to certify their intelligence, work ethic, and conformity - in other words, to signal the qualities of a good employee.

You are a vital part of more complex systems like your country, the economy, or the world; learn about their changing nature and find optimal solutions to problems related to them. The Elements of Thinking in Systems focuses on the nine fundamental system archetypes; our mental models related to them and the step-by-step implication methods to fix them. Learn to use systems archetypes to solve your problems at work, in your business, in your relationship, and social connections.

As a software developer from Texas, Tom thought he understood broken code. But when mysterious obelisks transform Earth into a glitch-riddled dungeon crawler, he discovers that debugging the apocalypse won't be as easy as turning it off and back on again. Their lifeline? Vending machines turned into miniature storefronts. These mechanical saviors dispensed everything from swords to shampoo—until they started dispensing death.

When the Doom System appeared, it shattered reality overnight. People took superhuman abilities, their only defense against a world that no longer made sense. But just as humanity began to adapt, the System changed the rules. Now, survival isn’t just a struggle. It’s a competition. For Hiro Johnson, staying alive has become a full-time job. The System twists the streets of New York into death traps, pitting survivors against monsters, hunters, and each other yet rewarding them with powerful skills and weapons.

When the System came to Earth, technology failed, monsters appeared, and billions died as humans were inducted into the game-like physics the System enforced. Unfortunately for the System, not all humans were on Earth. Some scattered postbiological individuals decided to push it back, and embarked on a decade-long crusade to eliminate the System from Earth.

A sequel to Sir Arthur C. Clarke’s Nebula Award–winning novella “A Meeting with Medusa,” this novel continues the thrilling adventure of astronaut Howard Falcon, humanity’s first explorer of Jupiter from two modern science fiction masters. Howard Falcon almost lost his life in an...

It has been over two years since the System arrived on Earth, leaving survivors fighting to rebuild and save humanity. Thanks to the help of a creature thought to be a legend, Jason and his friends have a path to discovering the truth behind what has happened. The System has been stacked against them, but these quests give them a chance to level the playing field against those off-worlders trying to exploit Earth and its people. Although the team has never wanted to be in charge, they are now Earth’s best hope of remaining in control of their own destiny.

In System Consolidation, Knox faces his greatest ordeal yet. The Titan System stands as a testament to order, drawing the gaze of friends and foes alike. To counter the looming threat of the Dark Titan, Knox and his allies are thrust into the Tower Challenge, seeking a mythical item crucial for victory. But their path is marred by treachery as nobles desperate to hold onto power scheme against them.

Erosion changes Earth's natural features. It breaks down materials and can help make something new. Discover why erosion is an important part of nature!

All living things need air to survive. Air also protects Earth. Discover why air is an important part of nature!

Plants and animals from millions of years ago left behind fossils. Fossils can teach people about the past. They are also used for fuel. Discover why fossils are an important part of nature!

Soil covers most of the land on Earth. It feeds plants and is home to many animals. Discover why soil is an important part of nature!

Most of Earth is covered in water. Water falls from the sky as rain or snow. All living things need water to survive. Discover why water is an important part of nature!

Mark and the ones he loves are forced to explore an abandoned space resort until a connection is made that opens an alternate path. With the help of his Enthralled, he finally steps out of his ChronoMind immersion rig and back into the real world. The battlefield becomes much wider as Mark, Ahnix, Vale, and Roo must make new friends and face dangerous enemies across both digital and post-apocalyptic landscapes before they can hope to find the peace they deserve.

Databases are structured collections of data that enable efficient retrieval, insertion, updating, and deletion of information. They serve as the foundation for various applications, from simple contact lists to complex enterprise systems. Key concepts include tables, which organize data into rows and columns; relationships, which define connections between tables; and SQL (Structured Query Language), used to interact with databases by querying and manipulating data.

From the author of New York Times bestseller The New New Deal, a groundbreaking piece of reportage from the trenches of the next climate war: the fight to fix our food system. Humanity has cleared a land mass the size of Asia plus Europe to grow food, and our food system generates a third of our...