Every so often, a book comes along that exceeds my expectations (not going to bury the lede here, this book absolutely gets a 5 star review). This one is certainly in that category. Start Small, Stay Small is an excellent guide to getting a product-based business going as a software developer. From the outset, Rob Walling doesn’t make the assumption that you have a large amount of money from investors or that you are playing the start-up lottery. This book is about building a sustainable business one step at a time, usually while working a full time job.