The published list on the website only has 200 entries, but there are far more amazing graphic novels than just that. If you're looking for more reading material, please download the starting list spreadsheet that contains every comic strip, graphic novel, or picture book that received even a single mention. The spreadsheet ranks all 4980 entries, and contains the name, author, artist, publisher, years published and ranking history for about half the list. More information will get added to the spreadsheet throughout the year.
Here is the spreadsheet for all 4980 entries.