It is perhaps unusual for an academic journal like the Lancet to spearhead a ‘movement’ to advocate the scaling up of mental health services in low-income countries. Yet at the movement's launch in London in November 2007, attended by representatives from World Health Organization (WHO), the World Bank, donor agencies, as well as the World Psychiatric Association (WPA) and the Royal College of Psychiatrists, it was clear that a seminal series of papers, published in September of last year, was of the utmost importance for world psychiatry and for our planet. The five papers in the series ‘Global Mental Health’ had the following titles: ‘No health without mental health’; ‘Resources for mental health: scarcity, equity, and inefficiency’; ‘Treatment and prevention of mental disorders in low-income and middle-income countries’; ‘Mental health systems in countries: where are we now?’; and ‘Barriers to improvement of mental health services in low-income and middle-income countries’ (Lancet, September 2007, vol. 370, nos 9590–9593).