New commuter-friendly summaries of leading business books launched Britain’s rail network, buses and the Tube are about to be turned into the country’s biggest learning zone, enabling busy professionals to learn the lessons of respected business leaders and self-help experts in the time it takes to get to work in the morning. A new service has launched in the UK, Joosr (www.joosr.com) – providing downloadable non-fiction book summaries that can be read in just 20 minutes. The subscription-based app offers top quality summaries of some of the world’s most…