Doberman Pinschers typically have a deep, broad chest, and a powerful, compact, and square muscular body of medium size. However, in recent years some breeders have primarily bred, shown, and sold a slimmer or more sleek-looking Doberman Pinscher. This has become a popular body type among many owners, especially those who show their Doberman Pinschers competitively. The traditional body type is still more desirable to many casual owners and to those who want the dog for protection.(Wikipedia)
Doberman Pinschers are, in general, gentle, loyal, loving, and intelligent dogs. Statistical techniques for assessing personality traits in humans have been applied to dogs, and show that Doberman Pinschers rank relatively high in playfulness, average in curiosity/fearlessness, low on aggressiveness and low on sociability.(Wikipedia)