Before Barton, Briggs et al., many evolution textbooks separated microevolution (genetics) from macroevolution (paleontology). This book explicitly bridges that gap. For example, a chapter on speciation will discuss population genetics of reproductive isolation alongside fossil lineages showing gradual morphological change. This integrated approach is now the gold standard.
"Nothing in biology makes sense except in the light of evolution." Evolution Barton Briggs Pdf Freel
: It is designed for undergraduate students and uniquely integrates molecular biology with evolutionary biology . Before Barton, Briggs et al