This is another book that our kids regularly pull off the shelf year after year. It comes with paper dolls, stickers, and a party hat, and other stuff, so has some extra fun. We have since lost everything but the book itself, but we still enjoy that. The papercraft makes it a fun gift that the child can play with independently during the day, and the book is a fun story for bedtime reading.
The theme is of animals planning a party, and a bird visits different biomes (arctic, jungle, farm, etc.) to talk with the animals there. They talk in terms of opposite prepositions and adjectives, each pair of sentences covers high/low, cold/hot, etc.
The mood is very cheeful and happy and our kids enjoy it.