If you don't know the work of Stanley Spencer, go to the Sandham Memorial Chapel in Berkshire based on his WWI experiences (free to National Trust members). He is not only one of the best 20thC British artists, but still one of the best loved as well, for his gorgeous rounded figures and spiritual exhilaration.
This book is the only way you will get to see Spencer's paintings of shipbuilders on the Clyde from WWII. Although the paintings are in the National War Museum in London they are so large they don't seem to be ever displayed.
They show him at the height of his powers, inspired by the work of the builders. Also he had one of his epiphanies, and painted a series of resurrections based on the graveyard nearby, and these paintings are in the book too. The text is helpful and informative about this great and much loved man.