Theories about the self are attempts to develop answers for the questions about the processes of being and becoming which debates sway from the inner and outer nature of meanings in a human's everyday life and the tensions within their emergence. However, the different paths for the construction of knowledge represent a risk; that of taking off the dynamic nature of the relationships, with objects, tools, persons, and contexts reducing them to mere static categories. This is precisely why this book is certainly an excellent labor of reconciliation with some constitutive processes of humanness, as well as scenery for contributions to the contemporary weakness of psychology. The Dialogical Self Theory (DST) is a bridging theory because its own conceptual framework is still open to considering the necessity of being in relation with other similar and contradictory theories that could contribute to its further development, and because it considers that I-positions as voices of the self are to be understood as external and internal societies (Hermans & Gieser, 2011, pp. 1-5). In this order of ideas, DST is a theory of the self and a theory of the social other (Gallagher, 2011). This book promotes the awareness of our relational nature and helps us to comprehend that even if we can interact, we do not always engage in dialogue, which is something precious, dialectic, dynamic and innovative (Hermans & Gieser, 2011). Further, we humans need to improve the quality of our dialogues with the self and others and, because of this, the handbook is a guideline to accompany different applicative fields in educational, clinical and organizational contexts, by means of a flexible self-awareness among the relationship of I-positions, third positions, meta-positions, and promoter-positions. Contributions are not just limited to pragmatic instances. This book offers and accurate documentation of innovations for basic psychology and methodology of research arenas. As well as offering innovative answers to contemporary weaknesses of psychology publications. Indeed, one aspect to highlight is that of the development of the self through space and time.