In the introduction to this edition there‘s a quote from an ad (?) by the Times from March 1836:
“containing a faithful record of the Perambulations, Perils, Travels, Adventures and Sporting Transactions of the Corresponding Members.” And I don‘t know a better way to describe this novel. But there‘s several delightful characters like Sam and Pickwick and some interesting ones like Jingle.
How does Dickens come up with all these names?