Mark Twain once said "it's not the size of the dog in the fight it's the size of the fight in the dog", with the heart (and sometimes stubborn head) of a full-sized Bulldog in a Pug-sized body the French Bulldog fits this to a tee.
For conformation during shows and trials kennel associations in many countries group breeds based on the purpose for which the dogs were originally bred. Although there is not an international standard for group titles, e.g. the Rottweiler is part of the "working" group in America and Canada, and the "utility" group in Australia and New Zealand, the breeds within each group are largely the same, regardless of the their titles.
A fantastic series of dog posters illustrated by artist Lili Chin.