Colophon

The animal on the cover of Building Web, Cloud, and Mobile Solutions with F# is a Barbel flyingfish (Exocoetus monocirrhus). This fish is distributed throughout the Indo-Pacific and Eastern Pacific regions and widespread in the tropical zone at a depth of 0 to 20 meters. Its maximum length is 23 centimeters and its body is brown along the top and silver below.

This fish has an elongated, broadly cylindrical body with a short head and a blunt snout. Its mouth is small and the lower jaw is slightly longer than the upper one, with no teeth. Its fins have no spines and its tail is deeply forked with a longer lower lobe. Its scales are large, smooth, and easily shed.

This fish is known to leap out of the water and glide for considerable distances above the surface. Its diet consists of zooplankton, crustacean, fish larvae, and fish eggs. Its migration is cyclical and predictable and covers more than 100 kilometers.

The cover image is from Johnson's Natural History. The cover font is Adobe ITC Garamond. The text font is Adobe Minion Pro; the heading font is Adobe Myriad Condensed; and the code font is Dalton Maag's Ubuntu Mono.

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