A 27-day plan for building a side business to supplement what you earn from your day job. From the New York Times bestselling author of $100 Startup comes this accessible guide to building a side business from scratch - without having to give up your day job. Side Hustle is about much more than just making some extra cash; it's about freedom and job security in today's unstable business environment. That's because when you receive income from multiple different sources, you are no longer dependent on the whims of a single employer. It affords you choices and options. In the style of $100 Startup, full of practical exercises and peppered with inspiring stories, Side Hustle shows readers how to brainstorm, choose, implement, launch and refine their side business in just 27 days - with little to no budget and without having to quit their current job.