The Interurban Era is an ambitious book recording various operations and equipment of North American interurban electric railways. It spans the entire United States (by geographical region), Canada and the Caribbean. It covers the late 19th century and first half of the 20th century when electric railroads helped cities connect to each other and grow, and their eventual demise. The book has plenty of beautiful B&W photographs that capture the subject in such a majestic way, and Middleton's writing helps fire the imagination for what was quite an exciting era in rail travel.