"Knowledge in transit"

A picture to support my posting on law firms using KM as a marketing tool...

I saw this van yesterday on Chancery Lane, outside the Law Society and opposite the offices of Denton Wilde Sapte (so yes, there is a lot of lawyers running around there): "It's a knowledge thing". I had seen the phrase before, but what I really liked about this one was the additional sentence "caution - knowledge in transit".