illi 2018 'Intensive Course' @ The University of Oklahoma, October 11 - 16, 2018

For detailed information and the course schedule, please go to our 'Intensive Courses' page!


illi's first internationally located Intensive Course in Japan in October 2017 was an inspiring success.

Read more and find a link to Photographer George Gruel's image collection on our 'Intensive Courses' page.

Our Mission





The International Landscape Lighting Institute (illi) informs, educates and promotes the art and technology of landscape lighting, allowing people to safely and securely navigate in the dark, while providing a beautiful nighttime environment.


Our Vision

When we design landscape lighting, we reveal a whole new world - elements in a garden are seen in a new way.  Plantings, structures, art and water take on new dimensions and appearances.  Lighting gives us back a primordial visual connection to nature, which is otherwise lost in the darkness.  We see the seasons unfold through our windows and receive comfort in the night.