The London Underground celebrates its 150th birthday this year and its iconic bar-and-circle logo is getting a retrospective in the form of A Logo for London, a hardcover book documenting its history and evolution.
Through the beautiful vintage posters, pamphlets and brochures, readers get a history lesson of the logo’s numerous redesigns.
The book also sheds some insight on the design elements and principles behind the logo and how they have elevated it from a mere decorative insignia to an internationally-recognized transport symbol, cementing its status as an enduring piece of graphic design.
Hop over to Amazon to purchase it and take a look at some posters below.
[via Brain Pickings]