The first thirty pages provide an overview of the offensive, the objectives, the theory, methods and tactics adopted and the part played by each arm in the different phases of the attack. In this preamble, which takes the reader up to the German withdrawal to the Hindenburg Line in February/March 1917, Gough is mistakenly referred to as commanding Second Army (page 2) instead of Fifth (Reserve Army till 30 October1916). Then follows an illustrated guide to the battlefield which covers both French and British operations with maps and photos, focussing on the area Albert-Bapaume-Peronne and the valley of the Somme, taking in all the battles in which the BEF was involved during the four and a half months campaign.