The collection, entitled Words That Change The World, was sent to as many as 1,000 people by one of Mr Putin's top aides, Vyacheslav Volodin, according to the business newspaper RBK . Recipients include MPs, regional governors and civil society representatives. In an accompanying letter, Mr Volodin says the book should be seen as a guide to the Kremlin's "values and guiding principles". He's also reported to have recommended it to a recent meeting of officials as "required reading for any politician".