Questions related to embryo shape or morphogenesis have haunted developmental biologists for decades. Recent advances in imaging, cell biology, signal transduction and biophysics have framed the study of tissue morphogenesis in terms of collective cell dynamics and the interplay between biochemical and mechanical processes. Recent findings have confirmed that proliferative epithelial tissues reshape via morphogenetic processes such as cell shape change and cell rearrangements. Yet cell division remodels adherent junctions and modulates both tissue mechanics and tissue dynamics. Therefore its role and interplay with the other morphogenetic processes need to be understood to decipher the mechanisms of tissue morphogenesis. Moreover, given the large size of some proliferative tissues, challenging questions can be addressed: How do local and long-range mechanical effects contribute to tissue dynamics? How do the combinations of several signaling pathways or gene expression patterns specify distinct local cell dynamics leading to the emergence of several morphogenetic movements within a given tissue? During my talk I will describe some of our latest works that aim to understand the mechanisms of mitotic spindle orientation, propagation of cell polarization through division and how cell division impacts on the global shape and organization of epithelial tissue.