ISBN-13: 9781440502620 / Angielski / Miękka / 2010 / 272 str.
"The section on testing your new business concept is unlike anything in any other book on start-ups. How much is it worth to know that your new business is something your customers will want--before you invest in it?"
--Pat Cunningham, Wall Street Journal Advertising Advisor and former Vice Chairman, N. W. Ayer Global Advertising Agency