I have over 25 years of experience in writing and reviewing technical and environmental documents. Major projects have included software documentation, technical guidance for users, Environmental Impact statements (NEPA), web pages and policy documents. Documents have ranged in style from highly technical to quite informal - sometimes user documentation needs humor to get the intended audience to even think about reading it... Currently I am responsible for maintaining the material on the US Fish and Wildlife Service web site related to Geographic Information Systems (computerized mapping). The audience consists of the general public as well as a variety of natural resource and computer professionals, so the material needs to be technically accurate as well as readable by a wide variety of people. I also am charged with reviewing quite a few policy documents in the technical arena, providing editorial comments on the documents and writing summaries of the documents for other staf