This document provides guidance on writing a concept paper and elucidating a concept. It discusses that a concept paper summarizes a project proposal, including what the project is about and how it will be carried out. There are three ways to elucidate a concept: definition, explication, and clarification. The document then provides templates for a concept paper structure depending on if it is for an academic research project or tangible project proposal. It details sections that should be included like background, objectives, methodology, and timeline.