Even though collaboration is entrenched in research practices, few studies have considered how the practice is enacted, among whom and to what effect. Reviewing the accounts of successful or productive collaborative-research teams in which collaborators report either concord or conflict in their relational dynamics, featured in this volume, leads to a deeper understanding of what it means to collaborate. The contributing authors explore their relationships and praxis in particular research collaborations that range from large interdisciplinary teams to intimate teams between university-based researchers who collaborate with teachers or students. Successes experienced by the contributors are discussed in terms of solidarity, emotional energy, trust, agency, power, and ethical praxis. It is clear from the studies reported here that despite recognized differences between researchers in teams, if they work with each other for each other, it is likely that they will build solidarity, and experience positive emotional energy and trust. The edited volume is relevant to both experienced and early career researchers.