Parallel Lines is the story of how these stories intersect ... As Olivia and Sebastian’s stories begin to weave together, certain images come to the fore. Hunter conceives of a grandiose art ...

The F-shape can be backwards, sideways or upside down. These images all show alternate angles. The angles on opposite sides of the transversal within the parallel lines are always equal.

In this brain teaser picture puzzle, you can see a number of slanting lines. Your goal in this brain puzzle is to find out which of the lines are parallel. As usual, we have a timer set for this ...

A normal human brain can look at things or images differently forming a different perception from each angle. One such clever illustration is an optical illusion with horizontal lines. Line ...

The author of the Patrick Melrose novels has written a follow-up to “Double Blind” that’s just as intellectually roving.