The Czech Society for Histo- and Cytochemistry is a successor of The Czechoslovak Society for Histo- and Cytochemistry founded in 1966. The Society provides an interdisciplinary forum to support a study of the relationships among the structure, chemical composition and function in cells and tissues by histochemical, immunohistochemical and cytochemical methods. The Society encourages its members in the development and improvement of histochemical, immunohistochemical, and cytochemical methods used to discover the content and function of the tissue and cellular systems in situ and the application of the methods for diagnostics. and Jaroslav Mokrý.