Martin Luther King Jr. Day details what the holiday is, the origin, who celebrates and traditions. A timeline, map, historical and current photos make this book a nice introduction to the holiday. Short sentences with highlighted words that might be unfamiliar (defined in the glossary) make it an appropriately leveled book for younger readers. My only complaint is that most of the photos, even the current ones, are fairly homogeneous in ethnicity, which is unfortunate and unrealistic. A more accurate portrayal of people of all backgrounds coming together should have been pictured.