This volume addresses two central cross-cutting themes in early intervention: the collaboration of the involved professional groups and the challenges arising from the inclusion paradigm. The book demonstrates in the first part how the application of the International Classification of Functioning, Disability and Health (ICF) as a common language for all professionals and families can support the communication process. The second part discusses how family orientation, as a fundamental understanding of interdisciplinary early intervention, lays the groundwork for inclusion. The concept of inclusion confirms and strengthens the core concept of interdisciplinary early intervention, as it establishes the foundation for participation in an inclusive society at the family level.