The book Innovation in Initial Mathematics Teacher Education (IMTE) provides innovative perspectives on content, pedagogy and assessment in IMTE. New perspectives on how content in IMTE has changed to include, for instance, STEM, sustainability, inclusive practices, and new approaches, pedagogy and formative assessment practices in relation to mathematics education in response to the changing educational landscape in this volatile, uncertain, complex, and ambiguous world. The book considers many different international perspectives, and concludes with a discussion of future directions for the field of research in IMTE.