Complex sentence: She wrote the book "An introduction to generalized linear model," which is one of the most influential and highly used book in the field by researchers and students in a wide range of background, such as mathematics, social sciences, and business.
Split into simpler sentences: She wrote the book "An introduction to generalized linear model," which is one of the most influential and highly used books on that topic. It is used extensively by both researchers and students with a wide range of backgrounds, such as mathematics, social sciences, and business.