David J. Bland@davidjblandOn our way to 800 reviews for Testing Business Ideas. Please leave us a review if you haven't already. It helps! https://amazon.com/Rapid-Testing-Business-Ideas-Customer/dp/1119551447… #leanstartup #designthinkingamazon.comTesting Business Ideas: A Field Guide for Rapid Experimentation (The Strategyzer Series)Testing Business Ideas: A Field Guide for Rapid Experimentation (The Strategyzer Series)8:26 PM · Sep 20, 20217 Retweets38 Likes