Tim Ferriss is a notable angel investor, serial entrepreneur, and podcaster. A renowned author who writes about rapid-learning techniques, his bestselling books have been published in more than 30 languages. Ferriss has been featured by over 100 media outlets and was a popular guest speaker discussing entrepreneurship as a tool for world change and ideal lifestyle design. The media have called Ferriss "the Oprah of audio” due to the influence of The Tim Ferriss Show podcast, which is the first business podcast to exceed 500 million downloads.