This historical exploration of the Green Book offers “a fascinating [and] sweeping story of black travel within Jim Crow America across four decades” (The New York Times Book Review). Published from 1936 to 1966, the Green Book was hailed as the “black travel guide to America.” At that time, it was very dangerous and difficult for African-Americans to travel because they couldn’t eat, sleep, or buy gas at most white-owned businesses. The Green Book listed hotels, restaurants, gas stations, and other businesses that were safe for black travelers. It was a resourceful and innovative solution to a horrific problem. It took courage to be listed in the Green Book, and Overground Railroad celebrates the stories of those who put their names in the book and stood up against segregation. Author Candacy A. Taylor shows the history of the Green Book, how we arrived at our present historical moment, and how far we still have to go when it comes to race relations in America. A New York Times Notable Book of 2020

Why is the Victoria Line so hot? What is an Electrical Multiple Unit? Is it really possible to ride from King's Cross to King's Cross on the Circle line? The London Underground is the oldest, most sprawling and illogical metropolitan transport system in the world, the result of a series of botch-jobs and improvisations.Yet it transports over one billion passengers every year - and this figure is rising. It is iconic, recognised the world over, and loved and despised by Londoners in equal measure. Blending reportage, humour and personal encounters, Andrew Martin embarks on a wonderfully engaging social history of London's underground railway system (which despite its name, is in fact fifty-five per cent overground). Underground, Overground is a highly enjoyable, witty and informative history of everything you need to know about the Tube.

From the award-winning author and illustrator of Before She Was Harriet comes an original and moving perspective of the Great Migration, as seen through the eyes of the young girl Ruth Ellen, whose family journeys from North Carolina to New York City.

Graffiti shapes the city. The city shapes graffiti. Overground 3 follows nine of the most influential European graffiti writers, showing how the personality and style of these artists are often a result of their surroundings - the obstacles and opportunities of their physical environment. The result is a personal big city story focusing on graffiti in Berlin, Copenhagen, Prague, Milan, Paris, Liege, Hamburg, London and Stockholm.

The Orange Line, the Ginger Line or the M25 Railway, call it what it what you will, the London Overground, born in 2007, has become one of London’s transport success stories. Running complimentary to, and in some places, in combination with, London Underground, it carries more than 180 million passengers a year on 9 lines and serves 112 stations over a combined length of more than 100 miles. An amalgamation of several commuter lines (and one London Underground Line) that ring London it now branches out to all points of the compass. Over recent years it’s also undergone unprecedented change and investment (with a few troubles along the way) with the phasing out of old and the introduction of new rolling stock. This book takes a photographic look at these changes including a look at the routes, the stations and the trains including Classes 172, 315, 317, 378 and the brand new 710s with a brief history of each. And with so much freight sharing the Overground routes this is briefly looked at as well.

This book constitutes the thoroughly refereed post-proceedings of three workshops and an industrial track held in conjunction with the 11th Pacific-Asia Conference on Knowledge Discovery and Data Mining, PAKDD 2007, held in Nanjing, China in May 2007. The 62 revised full papers presented together with an overview article to each workshop were carefully reviewed and selected from 355 submissions.

The purpose of the package is to answer the question 'What is the radio field strength at a certain point?' when power is radiated from a transmit ting source. Because of the complexity of the question in general, it can only be answered at present in certain idealized situations. Nevertheless it is valuable to have quantitative data available for these situations. The package is divided into two parts. In the first of these, propagation in free space and over a flat earth are dealt with. In the second, propagation over a spherical earth is considered. In the free-space situation the power density of the signal in a given direction will fall as the inverse square of the distance from the source. For propagation from a transmitting source at an arbitrary height above a perfecdy conducting flat earth, the field strength at large distances can be 3 dB higher than in free space. With a finite conduc tivity earth, the field strength will be lower than this because of the power dissipation in the earth.