The Steve Jobs Archive just dropped something unexpected: two volumes of letters addressed to young creators, featuring insights from the people who knew him best. Released on what would have been his 71st birthday, according to Business Insider, this collection brings together wisdom from Tim Cook, Jony Ive, Bob Iger, Pixar's Pete Docter, filmmaker Jon Chu, venture capitalist Arthur Rock, and other luminaries who worked alongside the Apple cofounder.