Parameswaran Iyer, former Secretary to the Government of India, is best known for leading the implementation of the Swachh Bharat Mission (SBM) - Prime Minister Narendra Modi's flagship programme, which became the world's largest sanitation revolution. But Iyer is not your typical bureaucrat. With a far-from-usual career combining two distinguished tenures in the government and an eventful stint outside it, he likes to describe himself as an uncommon 'Insider-Outsider-Insider'. In Method in the Madness, he reflects on the unique path he chose - from cracking the IAS to becoming a globe-trotting World Bank technocrat, to playing the role of a coach to his professional tennis-playing children, to finally returning to India and implementing the SBM. Written with humour and wisdom, this is an inspiring read full of key management insights, practical career advice, and valuable life lessons that will resonate with readers across age groups and professions.