Theresa Welsh is a writer, author and photographer. She and her husband, photographer David Welsh, have lived and worked in many areas of the city of Detroit and, as a retired couple have become "urban explorers," visiting and researching the city's colorful history. Theresa comments in words and photos on the decline -- and possible resurgence -- of Detroit through her website, www.theseekerbooks.com. She is the author of three other books.