When a Man Booker Prize winner gives you writing tips, take heed.

New Zealand author Eleanor Catton, who won this year's Man Booker for her novel The Luminaries, has tweeted advice to the writer of The Hunger Games trilogy, Suzanne Collins, on how she could have made the plot better.

The first tip is about the Capitol's revenge on heroine Katniss for winning the Hunger Games.

BETTER REVENGE: Eleanor Catton has some tips for Hunger Games heroine Katniss.

"Better revenge on Katniss: to rig the 75th games so that Prim and Gale are district 12's tributes," she said.

"Then Katniss, as mentor, parachutes herself into the arena at critical point, and Peeta insists on coming too. Then they bring down the arena together."

Catton tweeted she loved the books, but did wonder how plausible it was to find 24 living winners of the Hunger Games from all 12 districts for the Quarter Quell - special editions of the Hunger Games held every 25 years.

Catton also challenged the Capitol's political strategy.

"Also at the Capitol's wisdom in sending beloved victors back to the arena where 23 would die. What was their long game?" she asked.

The Hunger Games movies, which were adapted from the books by Collins herself, stayed faithful to the novels.

The first movie was released in March last year and the second, The Hunger Games: Catching Fire, was released late last month.

The trilogy outsold all the Harry Potter books on Amazon.