"Essential"? Don't make me laugh. Everything on here is on "Total Pop! (The First 40 Hits)", apart from a couple of cover versions. If the record company wanted to sell a few copies, they could've just put together a b-sides compilation, or something. Instead, you get about 16 randomly assorted hit singles in a basic cover with generic title and demonstrating about as much thought and class as a drunk man trying to eat a kebab on the last bus home. Sure, the music inside is great. But everything else about it is absolute balderdash. Buy "Hits", or "Total Pop" instead.