This comprehensive guide explores the multifaceted aspects of innovation and commercialisation within organisations. It delves into the context of innovation, differentiating between invention and innovation, and highlighting its significance for organisational growth. The guide examines various sources of innovation, explores different types of innovation, and analyzes the 4Ps of innovation and the innovation funnel. It also delves into frugal innovation, its role in organisational contexts, and the process of commercialising innovation. The guide further discusses the importance of the commercial funnel and new product development (NPD) processing, and provides a detailed innovation business case, including methods for accessing funding. Finally, it evaluates methods for protecting ideas and intellectual property, critically analyzing the nature of innovation and the challenges organisations face in developing successful innovations.