I have an image of myself in 2011, pushing my newborn son in a big red buggy because he would only nap when in motion. As I traversed the streets of suburban Birmingham, I felt observed, glanced at, commented on in a manner that ranged from pity to reproach to disproportionate admiration. Daft that it should be a remarkable sight, I thought, but there we go. Probably I’d have felt less self-conscious if I’d followed David Bowie’s example and – as in one of the images showcased here – worn what looks like a dress.On depictions of men and women...