CLIL, ‘a dual-focussed educational approach in which an additional language is used for the learning and teaching of both content and language‘ can be viewed as an example of curricular integration. This publication is one example of how this is being achieved. It serves to articulate why, and how, good practice can lead to the positive outcomes increasingly reported across Europe. It results from selected presentations given at the Helsinki CLIL 2006 conference «CLIL Competence Building for Globalization: Quality in Teaching Through a Foreign Language». The 28 contributions to this book, which originate from countries across the European Union, are divided into six sections covering classroom practice, evaluation, research, and programme management.