Having said that, I enjoy many authors but some popular ones seem to have a single masterpiece among many good works.

Frinstance,

The Golden Keel by Desmond Bagley
73 North: The Battle of the Barents Sea by Dudley Pope
Dover Goes to Pott by Joyce Porter
The Wreck of the Mary Deare by Hammnond Innes
Trapp's War by Brian Callison
Wilt by Tom Sharpe
A Christmas Carol by Charles Dickens
Tom Sawyer by Mark Twain
Alice in Wonderland by Lewis Carrol