Philip Wexler is a Technical Information Specialist within with the Toxicology and Environmental Health Information Program at the National Library of Medicine (NLM), where he has worked for twenty years. He is involved in testing, evaluating, enhancing, and documenting the TOXNET system and other NLM computerized files related to toxicology and hazardous chemicals, and is File Manager for the IRIS database. Mr. Wexler has taught and lectured widely on toxicology information in the U.S. and abroad, and has had numerous technical papers on the subject published. He has received the Distinguished Technical Communication Award by the Washington chapter of the Society for Technical Communication as well as the NLM Regents Award for Scholarship or Technical Achievement. Mr. Wexler also serves as an associate editor for a toxicology journal.