Even though the first track has historically overshadowed the rest, the whole thing is essential. If you don't know Henry Mancini well, this is a great introduction. His sound incorporated big band swing, Les Baxter-style exotica / lounge, and jazz. Full of interesting (unique, but never gimmicky!) tone colors and sounds, Mancini was a perfect choice of composers to score the quirky, wonderful movie that is The Pink Panther.
This is primo lounging music.