This illustrated history and guide to the Paris RER Line C was published in 2019 to celebrate the 40th anniversary of its opening. The book is divided into four sections, which are preceded by a short introduction and foreword outlining the various never-realised projects preceding the Transversale Rive Gauche (TRG) in the 1970s. The first section looks at the history of the lines and main stations, particularly the Gare des Invalides and the Gare du Quai d’Orsay, that existed before Line C came into being, the works to create the TRG, and the background to the project. This is followed by the second section which deals with the opening of the TRG and its first decade of operation. In the third section the expansion of Line C from 1988 onwards, starting with the opening of the Vallée de Montmorency–Invalides branch is covered. Finally, the fourth section is comprised of the present day operations including rolling stock, signalling, and infrastructure maintenance and renewal. Photographs include the different types of train used on the line, both past and present, including some archive photos and postcards of steam-hauled trains and the Rame Standard third rail EMUs which were used on the Ligne d’Auteuil until its closure for conversion to RER standards. Well illustrated with colour and black & white photographs, maps and diagrams. French text. 144 pages.