The ultimate insider's look at the newest titans of tech, from the editorial team at Forbes

Silicon Valley's new billionaires are an unconventional breed, turning ideas into money at a rate never before seen in human history. Their ascension proves a turning point in how great fortunes are made and how technology disseminates.

Among these golden boys are: Elon Musk, billionaire bachelor and founder of Paypal, electric carmaker Tesla, and private space company SpaceX; Evan Spiegel, 23-year old founder of Snapchat, who recently turned down a $3 billion offer from Facebook; and Alex Karp, the eccentric philosopher with almost no tech background who turned Palantir into a data-mining champion.

Over the last three years, Forbes has published indepth profiles of this new batch of billionaires, including the founders of Spotify, Dropbox, Tumblr, and Twitter. Now, in a compilation introduced and updated by Forbes editor Randall Lane, fans and critics alike will get a comprehensive look at w