A is for Addition, and there are rocks in the shape of real numbers, too. B is for Bird, and there is a bird rock on a nest with an egg. G is for Ghosts, and there is a host of rocks that look like ghosts! Children and adults alike will pore over these fascinating rocks, and will be inspired collect their own.

    But what will happen when they encounter a group of humans?Humorous and entertaining, Jeffrey Brown’s signature comical touch enlivens the scientific and historical content, including a special paleontologist section that helps to dispel common Neanderthal myths.