The Battle of the Somme was one of the costliest campaigns of the First World War, with tens of thousands of casualties on both sides, drawn from all corners of the world. To describe each day of the battle, 141 fallen casualties have been chosen and through their eyes the full scope of the horror of the Somme emerges. The poignancy of their personal tragedies reminds us of the great sacrifices made by ordinary men in this war to end all wars.

ALEXANDRA CHURCHILL is an author, researcher and historian who has contributed to and appeared on numerous television documentaries, including Timewatch (BBC2), Fighting the Red Baron (Channel 4) and Titanic with Len Goodman (BBC1). Her first book, the critically acclaimed Blood and Thunder: The Boys of Eton College and the First World War, was published in 2014. Her second book, Over Land and Sea: Chelsea FC in the Great War (2015), was her first collaboration with Andrew Holmes.

ANDREW HOLMES is a researcher and photographer who has been visiting the battlefields of the Great War for over twelve years. He collaborated with Alexandra Churchill on Over Land and Sea: Chelsea FC in the Great War (2015).