CPD stands for Continuing Professional Development. It refers to an ongoing process of tracking and documenting the skills, knowledge and experience that you gain both formally and informally as you work, beyond any initial training. It's a record of what you experience, learn and then apply. CPD also applies to any activity (or combination thereof) undertaken as a means by which to enhance and improve skills, knowledge, competencies and relevance in any professional capacity. Typical examples of CPD activities include online study programs, professional development courses, self-directed studies at home, reading relevant journals, attending conferences and so on. See the list of professional courses here.