Read this book cover-to-cover in 3hours. Filled with excellent plain english advice, it's one of the best books out there for business productivity. Not big on references, but the authors are credible because they built 37 Signals, which created Basecamp and Ruby-on-Rails. A damning critique of old school business types who favour endless meetings, reports, hierarchies and strategic plans. If you like this also read: 'The 4 Hour Work Week'