# Ben Tiggelaar Contributor supplied; source control is verified only where a listing's provenance says so. ID: 158eeb5d5557a3318cb6850472d20d086460cf77e042a51a2f33a2ca367e41bd Search context: `{}` Category: Advisors Dutch author, educator and advisor focusing on leadership, change and human behavior. His official site connects books, masterclasses, in company sessions and public content, including the change framework in De Ladder. It is useful for managers and professionals who want concrete ways to connect goals with behavior and supportive conditions, drawing on research and accessible examples from organizational life. ## About this listing Added as a fan ยท Contributor supplied Source control has not been verified. Listing updated: 2026-11-03 Link checked: 2026-11-03 [Main link]() [Explore listings](/search.md)