"The report provides the first global overview of quality models in online and open education, an overview which is very timely, delivered as it is for Global Education 2030, the new global educational agenda which replaces Education For All, EFA. The report paints with a broad brush the landscape of quality in online and open education – and its challenges. Illustrating that quality in online learning is as complex as the reality of online learning itself. It addresses new needs such as quality in MOOCs and Open Education Resources. It shows that one size does not fit all, that improving quality of student experiences is more than ever extremely important, and it warns against implementation of quality models that restrict innovation and change." (Preface)