In today's blog post, best-selling author Ryan Holiday shares how authors can use growth hacking, a technique used by successful startups, to launch their books and grow their readerships. I really liked Ryan's advice about knowing one's audience before starting a book. While writing THE 4-HOUR CHEF, author Tim Ferris would use surveys to gauge how readers would respond to certain sections.

What did you get out of the blog post? Do you think growth hacking is the way of the future?