The Junkers Ju 88 was a World War II German Luftwaffe twin-engine, multi-role aircraft. Designed by Hugo Junkers' Junkers company in the mid-1930s, it suffered from a number of technical problems during the later stages of its development and early operational roles, but became one of the most versatile combat aircraft of the war.
The Ju 88 proved to be suited to almost any role. It was used successfully as a bomber, dive bomber, night fighter, torpedo bomber, reconnaissance aircraft, and heavy fighter.
Despite its protracted development, the aircraft became one of the Luftwaffe's most important assets. There were 15,000 Ju 88s built during World War II, more than any other twin-engine German aircraft of the period.
Source:
Info: Wikipedia
http://en.wikipedia.org/wiki/Junkers_Ju_88
Profile: German Warplanes of World War II
Published by Temple Press/Aerospace.