This is an interactive tutorial on how to create thesauri that will facilitate successful searches in information systems that contain documents or data records. It consists of several training modules with information relating to various thesauri issues. It aims to provide users with information on how to build a thesaurus and contains definitions regarding concepts and terms, as well as methodological principles and guidelines. The intended users of the tutorial include students, researcher, academics, museum, archives and other cultural institution professionals, as well as developers of systems that manage and maintain thesauri.