does he appear in any other novel in this series?
Yes. In "A Clash of Kings" and "A Storm of Swords"
Joffrey Baratheon
He subsequently appeared in Martin's "A Clash of Kings" (1998) and "A Storm of Swords" (2000). 
where does the game of thrones books end With a planned seventh novel "A Dream of Spring" what is the main theme found in these books? Medieval realism with the story that feels more like historical fiction than contemporary fantasy, with less emphasis on magic and sorcery and more on battles, political intrigue, and the characters which is the first one in the series of novels? A Game of Thrones which are the places mentioned in this one? Castle Winterfell and capital city, King's Landing is there a wall that has any significance in this novel? Yes. The prologue of the novel introduces the Wall: an ancient barrier of stone, ice and magic who are the main characters in it? Lord Jon Arryn, Robert Baratheon, Eddard "Ned" Stark, Sansa, Joffrey who is the second character? He is the eldest son and heir of Lord Steffon Baratheon of Storm's End, the lord paramount of the Stormlands, and his wife Lady Cassana Estermont, and brother to Stannis and Renly who plays him in the tv series? Mark Addy how many seasons of the show does this character appear in? UNANSWERABLE is he related to the last character mentioned above? Yes. Joffrey is his son what is this character like? He is an amoral sadist who disguises his cruelty with a thin veneer of charm
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Joffrey Baratheon [SEP] Introduction
Joffrey Baratheon is a fictional character in the "A Song of Ice and Fire" series of epic fantasy novels by American author George R. R. Martin, and its television adaptation "Game of Thrones". Introduced in 1996's "A Game of Thrones", Joffrey is the eldest son of Cersei Lannister from the continent of Westeros. He subsequently appeared in Martin's "A Clash of Kings" (1998) and "A Storm of Swords" (2000). He is characterized as a spoiled, sadistic bully and is a frequent abuser of Sansa Stark, to whom he becomes engaged in the first novel, and his uncle Tyrion, whom he enjoys ridiculing.