"This handbook addresses and sorts out many of the complex issues related to teacher assessment and teacher quality, and the connections between the two. This is no small task, given the numerous ways and time points at which teacher quality is assessed, the multitude of stakeholders with a vested interest in assessment processes and assessment products, the competing policy and political agendas to which various assessments of teachers and teaching are attached, and ongoing controversies about what teacher quality means and why it is important. One of the strengths of this handbook is...