Museum services; educational services in the nature of museums designed to encourage and develop the study of science of optics and holography; designing, organizing, and displaying exhibitions of works, representations of works and reproductions of works in the field of science of optics and holography and materials explaining science of optics and holography techniques and principles for cultural or educational purposes; organizing and conducting educational conferences on science of optics and holography; educational services, namely, conducting exhibitions, workshops, seminars, lectures, tours, film and video presentations in the field of science of optics and holography; educational services, namely, providing libraries and study centers in the field of science of optics and holography; publication of educational material being texts, books, and magazines in the field of science of optics and holography; entertainment in the nature of exhibitions on the science of optics and holography; entertainment in the nature of science exhibitions; entertainment in the nature of hologram exhibitions; entertainment services, namely, organization of cultural events; hosting [organizing] social entertainment events, namely, birthday parties, special events