Olivia knows all about opposites. Sometimes this porcine heroine is “plain,” attired only in red briefs. Other times she is “fancy,” with high-heeled dress-up shoes, lipstick, pearls, and a big red bow. Sometimes —- when Olivia is running the circus, for example – she is very “loud” with a lion, which renders the lion rather “quiet.” This sturdy little board book, with lots of white space and black-and-white illustrations, splashed with occasional red, is a perfect introduction to the concepts of opposites, from “up” and “down” to the “open” and “closed” mouth of our yawning, pajama’d pig at the conclusion.