The "helpful feature" you are likely looking for in The New Windmill Book of Greek Myths by Geraldine McCaughrean is its "Who's Who" section World of Books
If a student only reads Percy Jackson, they understand the pop culture version of mythology. If they read the New Windmill edition, they understand the archetypal version—the raw material that has fed Western art for 3,000 years. the new windmill book of greek myths
: An epic voyage of adventure and betrayal. The "helpful feature" you are likely looking for
"The Twelve Labours of Heracles," "Perseus," "Theseus and the Minotaur," and "Jason and the Golden Fleece". The Twelve Olympian Gods and Goddesses :
What sets this version apart from other collections, such as the D’Aulaires’ Book of Greek Myths