There are many things that add up to this breed to make it "correct" in breeder's and enthusiasts eyes'. (Example picture is below...) The Cane Corso is a marvelous dog! Hopefully in the future, this breed will be unfeared by average people.

(Have permission to use photo. Photo curtesy of Stacey and David Kuneman. Ch. Rivale Bogart di Amore)
This dog is a very strong example of a correct Corso. It's head is well formed, muzzle is somewhat wide, lips are not to tight or loose, ears are correctly cropped, the dog is well muscled, the top line is not too curved, and stifles are not too streight. This is just some of the things that cross with this dog.





The dog on the left in east-west. The dog on the right is "pigeon-toed."

(Got the images off of Google.com)
See how much this image matches with the dog above.
*Basir was the original Corso that set the standard in the 1980's*
SOME MORE FACTS:
Country of Origin: Italy Uses Today: Companion, security, protection.
Year of Origin: Antiquility (?) Expectancy to Live: 8-12 yrs.
First Use: Cattle Droving. Weight/Height Ranges: 80-142 ibs. 21-29 in.
Other names of the Breed: Sicilian Branchiero, Cane di Macellaio, commonly called the Italian Mastiff.
How is this breed is different?
This breed is not a dog for first-time dog owners. It is a serious dog and takes experience. But the good new is, that this breed of dog has a natural tighter lip than the looser lipped mastiffs. The Corso is also very smart and learns to obidience commands on the spot. Corsos also need the right amount of socialization to be friendly with people and dogs. But if the dog is bred correctly, it should have no problem. This breed should also be carefully bred.
CORRECT TEMPERAMENT
The correct temperament of a Corso is NOT an agressive monster that is unfriendly. Absolutely not. This breed is naturally protective of family, and is somewhat wary of strangers, but will warm up eventually. It is a dog with strong will and endurance. This dog must have a job (if it is a working type) in order to have a more obedient dog.
The Head Type
The right dog should have a well-defined stop and it's muzzle legnth not to long. The muzzle should be "boxy", or square, and it should be somewhat wide-defined. The muzzle takes a good portion of a dog's head. The head, on the other hand, should be quite angled and a bit rounded, but ALMOST square. Viewed front-ways, it is curved, and the width of the head from the ears (sometimes further) on to the muzzle should the same as the height of the head itself. Basically, the muzzle of the entire head takes up %33 and the the head itself should take up %66.