By Peter N. Pero

For more than a century, Chicago has been a workshop to the world. The city nurtured thousands of companies that supplied a hungry market with industrial products. Successful firms that survived nearly 100 years are Mars Candy, Motorola Inc., Abbot Labs, Radio Flyer, Rand McNally, and others. Aged companies that sold off their brands or were bought-out entirely include Schwinn Bikes, Sears Stores, Pullman Rail Cars, Bell & Howell Cameras, and more. The large manufacturers listed in this history book are arranged in a "then-and-now" photo format that is easy to follow across decades.

 This book is a survey of economic growth. Trace a large city firm that was once a mom-and-pop store like Brach's Candy or follow the growth of an industrial giant like Western Electric as it morphed into AT&T. Through world wars, economic recessions, and boom times, the companies in this book offer lessons on perseverance, abundant energy, and innovative labor.

 Today, Chicago has lost its lead in the meat packing, farm equipment, and clothing industries, but significant gains have been made in computerization, medical services, social media, and finance. This book traces Chicago's economic legacy.