Abstract
Inspired by the success of Lean Manufacturing, various attempts have been made to translate Lean principles into the software engineering domain. As a result, Lean Software Development has gained large attention in the software development community as well as in academia. Unfortunately, it is still difficult to actually implement Lean Thinking as suggested by the pioneers of Lean Software Development, since Lean adopts a more scientific style: a style that invites the practitioner to investigate him or herself where value is created or wasted and to constantly improve in doing so. This extended abstract points out the core ideas presented in the book 'Lean Software Development in Action', published by Springer in 2014, which aims to fill this gap.