“The origins of Bookman Old Style lie in the typeface called Oldstyle Antique, designed by A C Phemister circa 1858 for Miller & Richard. Many American foundries made versions of this type which eventually became known as Bookman. The roman of Monotype’s Bookman Old Style [designed by Ong Chong Wah in 1990] is based on earlier Lanston Monotype and ATF models. The italic has been redrawn following the style of the Oldstyle Antique italics of Miller & Richard.” — Linotype
The popularity of this Bookman could be owed to its bundling with various Microsoft products in the 1990s. Linotype released the retail version of Bookman Old Style in 2005.