Making Work Visible: Exposing Time Theft to Optimize Work & flow by Dominica Degrandis
My rating: 4 of 5 stars

The book is a good read and I would recommend it – these are the most dangerous causes of extra work:

• Too Much Work-in-Progress (WIP)
• Unknown dependencies
• Unplanned work
• Conflicting priorities
• Neglected/partially completed work

The book then goes on to show how visualisation can aid identifying the causes of delay and focussing on improving flow. Flow metrics:

• Lead time
• Cycle time
• WIP
• Aging report