A biography of the sixteenth president who helped to preserve the Union during the Civil War and who is know as a compassionate man and eloquent speaker.
Introduces the life and accomplishments of the woman who could neither see nor hear, but learned to communicate with her fingers, and taught the world about the life of people who are deaf and blind.
From the series Life in the Sea, The Continental Shelf is a fascinating examination of the physical features and biology of the marine environments that surround each of the world's landmasses.This st
A comprehensive resource on the ocean's inhabitants presents living things in their physical habitats, emphasizing the relationship between marine biology and marine ecology, and the impact humans hav
