Author George RR Martin recently admitted that he's irritated by minor mistakes that appear in the novels upon which the HBO television series "Game of Thrones" is based. Martin is the author of the book series “A Song of Ice and Fire.” Last week, during an appearance at the 92nd Street Y in New York City, Martin said that the mistakes can affect the impact of deliberate inconsistencies he cleverly wrote into the books.

Martin frequently appears at book and television conventions. Last week, he was interviewed in front of a live audience about the creation of “A Song of Ice and Fire” and “Game of Thrones.” Business Insider shared a short clip from the interview, where Martin speaks about mistakes in the books. He says that there are some small mistakes, such as the color of some characters' eyes.

“These are simple mistakes but they irritate me,” Martin says.

Martin explains that he is using the “point of view” narrative to show how two of his characters may remember some incidents in very different ways. The books are told from the points of view of the characters and he feels that in putting in these small differences, he is able to show a difference in the characters’ experiences. He says that he feels that it is a very clever writing device that he is using. However, the mistakes make it seem like the deliberate inconsistencies are less meaningful and are also just minor mistakes.

The clip doesn’t give examples of the deliberate inconsistencies, but Martin did speak about some details that he would call mistakes. He went all the way back to the first book, where there was a feast in Winterfell in honor of the king’s arrival. He forgot to mention Bran Stark when he spoke about the Stark children from Jon Snow's point of view. He said that he received numerous letters asking about the omission and whether it meant anything. He sadly admits that he simply forgot.

He also feels that his introduction of Tyrion Lannister could have been done differently. The dwarf supposedly did a somersault off a door frame during his first meeting with Jon Snow. Martin now feels that he could have written the scene differently.  

"The Winds of Winter," the sixth installment of “A Song of Ice and Fire,” is expected to arrive this year. The series “Game of Thrones” just concluded Season 5, with Season 6 expected to begin next spring on HBO.