The MC-squared project aims to develop a new type of e-book called a c-book, which stands for creative book. C-books allow for interactive components, analytics of student learning, and collective design. The key features of c-books are that they can be authored, store student results, and be accessed online from any device with internet. C-books also promote creativity and collaborative work between teachers. Within teacher communities in England, c-books are found to catalyze professional development as teachers co-design resources and gain knowledge at the intersection of technology, pedagogy, and their content area.