 "Body Worlds" has prepared free teaching guides for secondary school education, typically made available through organizations hosting its exhibitions.In 2005, the New York University College of Dentistry experimented with replacing traditional laboratory dissection with the study of dissected and plastinated slices of specimens, for the training of beginning dental students.In July 2008, the Czech Senate passed a law to address illegal trading in human tissue and ban "advertising of donation of human cells and tissues for money or similar advantages".