This UP CLOSE takes readers down the hatch, below the ocean’s waves, and into the exciting world of submarines. It’s filled with thrilling images and fascinating details about how subs are built, equipped, maintained, staffed, and stocked. Photos provide an inside view of the Control Room and display such important elements of the submarine as the powerful main computer, torpedo tube, periscope, and ballast tanks used to raise and lower the ship. Watch the crew as they carry out their duties, and learn about the sub’s sonar, its weapons, how it recycles air and water, and how it stays hidden from enemies—and pinpoints its targets during battle.