Internet Space Builder (ISB) is a user-friendly authoring tool that allows for the creation of 3D models for the Web. ISB's galleries contain more than 1,000 samples of textures, 3D-objects, scenes, landscapes, and pictures. Supported formats include the following: VRML 2.0; BMP, GIF, JPEG, and PNG; and import of 3D Studio and AutoCAD objects. The user canot save a scene with more then 1,400 faces, seven textures, two pictures, two movies, and two URLs. The limited libraries' contents include 62 textures, three pictures, two movies, 16 objects, 13 shapes, one scene, and only the basic background scheme.