Throughout the quick reference, you’ll notice that types are sometimes referred to by type name alone and at other times referred to by type name and namespace. If namespaces were always used, the type synopses would become long and hard to read. On the other hand, if namespaces were never used, it would sometimes be difficult to know what type was being referred to. The rules for including or omitting the namespace name are complex. They can be summarized approximately as follows, however: