Carlo D'Este (1936–2020)

Excellent review of this aspect of Churchill. At times it becomes a bit of a hagiography, btu there's also a degree of balance. Definitely worth a read.

A great flip side to Ambrose's D Day book. This is HOW ccampaigns are PLANNED and then EXECUTED. But reading a great deal of background material will help enormausly

Gives a birds-eye perspective on the Normandy campaign, with an emphasis on Montgomery's leadership. One of the fairest assessments by an American, I think, concluding that Montgomery's strengths were not best suited to a campaign which required rapid readjustment and a high-degree of risk-taking. Readers who like to know what war was like for individual soliders may find the book disappointing, but those more interested in strategy and politics will enjoy it immensely.

Very well researched and even-handed work on the Allied Plan and Action (and how they differed, despite Montgomery's assertions) during the battle of Normandy, from the pre landing to the aftermath.