Dive beneath the ocean's surface and learn all about the amazing world of submarines in this informative book for young readers. Follow a team of scientists down to the ocean's depths in a vivid introduction to the world of underwater craft. Explore the ocean's hidden treasures like never before! Includes full-color photographs and lively illustrations of magnificent underwater machines. Perfect for developing children's reading skills and encouraging a curiosity of the world around them. Stunning photographs combine with lively illustrations and engaging, age-appropriate stories in DK Readers, a multilevel reading program guaranteed to capture children's interest while developing their reading skills and general knowledge. With DK Readers, children will learn to read-then read to learn!