A necessary starting point in engaging in debates about the meaning of HRD is to explore processes of theorising the concept. It is perhaps worthy of note and probably telling that debates on theory, meaning and definitions are primarily conducted by academics and almost exclusively in the pages of academic journals. This e-book aims to engage practitioners as well as academics in exploring the bases of theorising HRD in order to make progress on connecting theory and practice as a contribution to advancing both. The e-book will consider the current areas of interest in theorising HRD and the areas of practice which both inform and provide the foci for that theorising.