During the past months, CESIS has coordinated desk research on the issue of early intervention, engaging all the HOOD partners. Finally, we share the result of the research with a report translated into all our project languages. In the report differences from our national contexts come up and international experiences on the early intervention are discussed. The relevance of time emerged as a recognised topic, but – as you will read in the report – research and project on early intervention are still rare in our countries and need to be further promoted.