This document explores the assessment of professionalism in healthcare professions. It begins with an icebreaker exercise and then defines professionalism as qualities characteristic of a profession including skill, knowledge, and work practices. The document outlines several domains of professionalism including patient care, medical knowledge, and ethics. It notes professionalism is complex to define and assess given it involves various attributes, behaviors, and attitudes that depend on context. Several tools for assessment are discussed, including written assessments, competency-based approaches like OSCEs, and performance-based methods like multi-source feedback. The document stresses the need for a validated definition of professionalism to guide assessment and emphasizes triangulation of multiple assessment methods over time for reliable and valid evaluation