Carroll is probably one of the better known researchers focusing on the evolution of cis-regulatory elements, non-coding sequences which regulate the expression

Carroll is probably one of the better known researchers focusing on the evolution of cis-regulatory elements, non-coding sequences which regulate the expression of nearby genes. I would consider his 2005 book Endless Forms Most Beautiful to be a reasonable introduction. For something more less pop-sci I understand Davidson and Peter's (2015) Genomic Control Process has been fairly well received, as well. Though both are on the older side of things now, and admittedly I'm not too familiar with the current literature, they would probably be my recommendations. There are also non-gene regulatory elements of course.