Complex sentence: They were an arm of the United Nations and were notable for their depiction of the heroes as everyday people whose heroic careers were merely their day jobs, as well as featuring some of the better artists of the day, notably Wally Wood.
Split into simpler sentences: They were an arm of the United Nations and were notable for their depiction of the heroes as everyday people whose heroic careers were merely their day jobs. The series was also notable for featuring some of the better artists of the day, such as Wally Wood.