Tom came to Rome on a Fulbright Fellowship in 1991 after completing his architectural studies at Harvard. Tom was the founder of Scala Reale, an association of scholars leading small-group study walks that was acquired by Context in 2004. Currently Tom is dedicating himself to the fields of cultural and environmental sustainability, architecture and design through his teaching and his design firm TRA_20. He is the author of the book Rome Works: An Architect Explores the World’s Most Resilient City, and the editor of the Still Sustainable City blog sustainablerome.net which was chosen by Guardian Cities as Italy's best city blog.

Liz, a native of San Francisco, California holds degrees in architecture from the University of California at Berkeley and Università degli studi "La Sapienza", Rome. She specialized in restoration and urban design. Her restoration projects have brought her to work in direct contact with the rich historical layers of Rome and Italy. She has been leading study walks for Context Rome since its beginning and has lived in Rome since 1988 practicing architecture, researching design and lecturing at university study abroad programs.

Olivia is a Rome licensed guide and an expert art historian who has worked as a main contributor to the award-winning Eyewitness Guide to Rome. She combines this role with her job as a professor, teaching a course at the Lorenzo de Medici School in Rome on Roman civilization. In addition she has contributed to the National Geographic Lost Cities of the Ancient World. Olivia infuses her discussion of Rome with a sense of what it's like to grow up in the city and be Roman.