Wallpaper Group p4

P4 is such a fun wallpaper group because it has this spiraling nature:

Fun fact: the Sun Microsystems Logo is also in this group. RIP Sun.

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OMG, it even spells SUN as it rotates. I love it so much. :(

Here's the structure:

	a centre of rotation of order two (180°).
	a centre of rotation of order three (120°).
	a centre of rotation of order four (90°).
	a centre of rotation of order six (60°).
	an axis of reflection.
	an axis of glide reflection.

 Image and Key: Source: Wikipedia

Here's the corresponding Pinterest board.