What If? (47 page)

colophon

The body of this text was set Adobe Caslon Pro,
a Caslon variant designed by Carol Twombly
in 1990 based on Caslon’s specimen pages.

The section headings and question titles
were set in Univers, a realist sans serif
designed by Adrian Frutiger in 1954.

The questions were set in Glypha,
a square serif typeface designed
by Adrian Frutiger in
1977.

About the Author

R
ANDALL
M
UNROE
, a former NASA roboticist, is the creator of the webcomic xkcd and the author of
xkcd: volume 0.
The International Astronomical Union recently named an asteroid after him; asteroid 4942 Munroe is big enough to cause a mass extinction if it ever hits a planet like Earth. He lives in Cambridge, Massachusetts.