1. Introduction

Over the past decades, the educational psychology knowledge was constantly rebranding and revising due to performance pressure and need to solve authentic educational problems. The multiple case studies [1], the mastery experiences, and the different kinds of results from the research nurtured new mutual communities of knowledge in the area. This book comprises a variety of styles, debated issues, many theoretical positions, substantial details concerning knowledge, and tensions between extreme methodological rules, and discusses the most important academic market topics.
