Parents need to know that "I Am Martin Luther King, Jr." is the eighth book in author and History Channel host Brad Meltzer's Ordinary People Change the World picture book biography series, which includes books on Abraham Lincoln, Jackie Robinson, Rosa Parks, and Lucille Ball. The narrative approach and at times comics-like design of each book is the same: A pint-sized, big-headed cartoon version of the person looking like his or her adult self gives a capsule first-person account of childhood through greatest accomplishments. So here's King, sporting his trademark mustache and wearing a mini-black suit and tie, as a child in segregated Georgia, then a minister, then leader of nonviolent civil disobedience actions and marches to effect change. Police beatings and the infamous water hoses turned against child protesters are referred to but not shown. Sophisticated concepts and vocabulary (" ... it was a wake-up call for the nation's conscience") make this a better bet for kids 7 and up than the 5 to 8 recommended by the publisher. In any case, parents and teachers should be ready to answer questions about this turbulent period of U.S. history.