Offering special interest groups, summer suburban and away camps, and international stays. We organize parent-child exercise classes, English lessons and clubs in ceramics, dance, karate, floorball, self-defense, cooking, table tennis or astronomy. We organize cultural and social events.

We manufacture and sell new and second hand astronomical optics, mechanics, electronics and accessories. We offer telescopes, domes, mirror systems, CCDs, filters, tripods, software, literature or accessories.

We deal in buying and selling books, book estates and whole libraries. We operate an antiquarian bookshop offering theatrical, archaeological, bibliographical, travel, girls', children's, detective, spiritual, educational, military, technical, mystery, occult, musical, hobby and craft literature.