A minimal example of rotated text in LaTeX. All you need is
in the preamble, and
around the text you wish to rotate (in this case, by an angle of 45 degrees).
This example was originally posted at: http://texblog.org/2013/10/01/rotate-an-image-table-or-paragraph-in-latex/
A drawing in TikZ.
The first picture draws an impossible brick, which induces
an optical illusion similar to that triggered by Escher's
The second picture draws a Penrose triangle, another similar