I always gathered that 'A Bridge Too Far' is a monument to human courage and that Ryan used Market-Garden as his canvas to make his eloquent point.
The book starts of with the little town of Driel (as well as ends there) and we see the drama open and unfold as the Germans, having been routed from Normandy and France altogether, are withdrawing from Holland in chaotic fashion. The Dutch begin to wonder if the Allies are coming. The Germans eventually stabilize their lines in time to receive the landings. When the paratroopers finally land, they are in the fight for their lives as the Germans attack them ceaselessly.
You will read with wonderment at the bravery of the Dutch who aid both liberators and occupiers with humanity, the valor of the troopers of Julian Cook's battalion as they cross the Waal River in rickety boats under heavy German fire, the magnificent stand of John Frost's battalion at Arnhem Bridge, the steadfast determination of Roy Urquhart's Red Devils, the dedication of the troops of Bittrich's II Panzer Korps in protecting what they believed was the direst threat to their homes.
I can't praise this book highly enough. It completes an epic trilogy Mr. Ryan started with the Longest Day. It's tragic, but never weepy, it never engages in 'could have, should have' discussions, but let's the story do the talking (a sign of first rate reporting).
This is the finest monument of Market-Garden we are ever likely to have.