The HLCA consortium consists of three work blocks (WB 1-3) with each including three subprojects (fig. 2). The work blocks are grouped by topics: Basic research (WB1); applied research on mental health literacy (WB2) and e-Health literacy (WB3). There are two regional clusters: WB 2 will be implemented in North Rhine-Westphalia while WB3 will do so in Baden-Württemberg. The subprojects will be coordinated by one or two principal investigators who are responsible for the implementation of the work plan.