Regardless of where you live or work, Silicon Valley undoubtedly touches your life—the tech industry's gadgets and apps promise us more efficient, convenient, and fun lives. Yet despite Silicon Valley's utopian promises, more and more of us find ourselves addicted to our smartphones, made insecure by social media, gentrified away by tech wealth, and alarmed at social media companies profiting off personal data. This succinct guide follows Silicon Valley and the tech industry from the beginning of the twentieth century to the present day, tracing how Silicon Valley changed the San Francisco Bay Area, changed human culture, and ultimately changed the way we think about ourselves. From the first Macintosh to the rise of social media, A Brief History of Silicon Valley peels back the curtain on an industry that brands itself as visionary but which may be swiftly hurtling us towards dystopia.