Alexis Berg is one of the world's premier sports journalists. Specializing in long-distance events, often in hard-to-reach locations, particularly in the mountains, Berg has captured some of the world's most challenging races and extraordinary humans. Frédéric Berg is a journalist and seasoned ultra-marathoner. He has finished two legendary trail races, the Diagonale des Fous and the Ultra-Trail du Mont Blanc. Aurélien Delfosse is a journalist for L'Équipe, one of the world's leading sports newspapers.

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The very best of international trail running brought together in one spectacular showcase.

Runners and races, new places and new faces: here is the very best of trail running brought together in one spectacular showcase. Experience thirty-six races in twenty countries, featuring trail running in all its forms: short trails, ultra-trails, mountain running, stage races and skyrunning.

Immerse yourself in inspiring interviews with leading trail runners, past and present, nding out what drives them. Then go deeper with specialist essays that take a closer look at the global boom in trail running and look towards the future: the bigger it gets, the more it will need to change and adapt.

Packed with breathtaking photography, this is an unforgettable handbook for anyone planning their own trail running adventure or simply dreaming about what might be possible.