Mary Poppendieck has been in the Information Technology industry for over forty years. She has managed software development, supply chain management, manufacturing operations, and new product development. She spearheaded the implementation of a Just-in-Time system in a 3M manufacturing plant and led new product development teams, commercializing products ranging from digital controllers to 3M Light Fiber™. Mary is a popular writer and speaker, and coauthor of the book Lean Software Development: an Agile Toolkit, which was awarded the Software Development Productivity Award in 2004. A sequel, Implementing Lean Software Development: from Concept to Cash was published in 2006. A third book, Leading Lean Software Development: Results are Not the Point was published in November 2009, and a fourth book, The Lean Mindset: Ask the Right Questions was published in 2013.