This book aims to reveal the synergistic link between the reflection of university teachers and the strengthening of complex thinking in higher education students. Therefore, the following questions emerge: Is the teacher's reflection based on the being, doing and undertaking of sabere, does it provide metacognitive tools to the participants when mastering the knowledge, does it develop the complexity of thinking, does it develop the complexity of thinking? Therefore, this book is based on the episteme of several authors that allowed to argue theoretically this compendium.