Treating mental disorders is a critical issue for modern societies due to high costs for the different national healthcare systems. Evidence-based psychological therapies and structured psychotherapies have been recommended for common mental health problems, but real provision of them has not yet achieved significant spread and impact (Mukuria et al., 2013). To improve access to psychological therapies may provide cost-effective solutions, since their positive long-term impact on health has been largely demonstrated (Castelnuovo, 2010a,b; Campbell et al., 2013; Dezetter et al., 2013; Mukuria et al., 2013; Emmelkamp et al., 2014). However, in many developed countries, such as France or Italy, psychotherapies are not enough covered and promoted by the national healthcare systems and health insurance companies (Dezetter et al., 2013). Differently, in the UK, to tackle the huge problem of mental illness, a comprehensive programme of psychological therapy has been launched and watched worldwide. An estimation of its long-term clinical and economic benefits, has, in fact, led to ascertain that “psychological therapy costs nothing” (Layard and Clark, 2014; Clark and Layard, 2015). In order to mimic the positive experience developed in the UK, other countries have now to demonstrate not only the fundamental role and scientific validity of psychological treatments in both clinical and health settings, but also their significant cost-efficacy.