Van Nijenvelt is a notable figure in the field of Dutch art history. He is recognized for his contributions to the understanding and appreciation of Dutch Golden Age paintings. His work often focuses on the analysis of various artists and their techniques, helping to illuminate the cultural context of the time. In addition to his scholarly work, Van Nijenvelt has been involved in various exhibitions and publications that showcase Dutch masters such as Rembrandt and Vermeer. His efforts have played a significant role in promoting awareness of the rich artistic heritage of the Netherlands.