The best and worst HBO book adaptations, from 'Game of Thrones' to 'Big Little Lies'

"Game of Thrones" is the most iconic HBO show, and it's based on a book series. But it's far from the only series, original movie, or miniseries based on a book from the network.

A handful of HBO's original shows and movies have been adapted from books, including the new series "Sharp Objects" starring Amy Adams, which is based on Gillian Flynn's book of the same name. The book was Flynn's debut novel, before "Gone Girl" became a bestseller (and a movie). The story follows a journalist who must return to her small Missouri hometown to report on a series of brutal murders.

Over the years, HBO has made its fair share of book adaptations. Some have been great, some good, and some really, really bad. Here, we took a look at HBO's most significant book adaptions from TV series to movies, and determined which ones are the best and the worst.

Here are the best and worst HBO adaptations of all time: