Question: Who wrote the book that the 2010 sci-fi film by Spike Jonze is based on?

Context paragraphs:
Where the Wild Things Are (film): Where the Wild Things Are is a 2009 fantasy drama film directed by Spike Jonze.  Written by Jonze and Dave Eggers, it is adapted from Maurice Sendak's 1963 children's book of the same name.  It combines live-action, performers in costumes, animatronics, and computer-generated imagery (CGI).  The film stars Max Records and features the voices of James Gandolfini, Paul Dano, Lauren Ambrose, Forest Whitaker, Catherine O'Hara, and Chris Cooper.  The film centers on a lonely eight-year-old boy named Max who sails away to an island inhabited by creatures known as the "Wild Things," who declare Max their king.

MTV Video Music Award for Best Direction: The MTV Video Music Award for Best Direction in a Video is a craft award given to the artist, the artist's manager, and the director of the music video.  In 2007, the award was briefly renamed Best Director, but it returned to its original name for the 2008 awards.  The biggest winners are Spike Jonze and David Fincher with three wins each, although one of Jonze's wins is credited as the "Torrance Community Dance Group".

We Were Once a Fairytale: We Were Once a Fairytale is a 2009 short film directed by Spike Jonze.  It stars hip hop musician Kanye West.  This is the second collaboration between Jonze and West, since they co-directed the music video for West's single "Flashing Lights" in 2008.

Her (film): Her is a 2013 American romantic science-fiction drama film written, directed, and produced by Spike Jonze.  It marks Jonze's solo screenwriting debut.  The film follows Theodore Twombly (Joaquin Phoenix), a man who develops a relationship with Samantha (Scarlett Johansson), an intelligent computer operating system personified through a female voice.  The film also stars Amy Adams, Rooney Mara, and Olivia Wilde.

List of accolades received by Her (film): "Her" is a 2013 American comedy-drama film written, directed, and produced by Spike Jonze.  The film's musical score was composed by Arcade Fire, with the cinematography provided by Hoyte van Hoytema.  It marks Jonze's solo screenwriting debut.  The film follows Theodore Twombly (Joaquin Phoenix), a man who develops a relationship with Samantha (Scarlett Johansson), a female voice produced by an intelligent computer operating system.  The film also stars Amy Adams, Rooney Mara, and Olivia Wilde.

Elektrobank: "Elektrobank" is a song by English electronic music duo The Chemical Brothers.  It was released as a single from their second album, "Dig Your Own Hole", on September 1997.  It peaked at number 17 on the UK Singles Chart.  Spike Jonze directed the music video, which depicted a mixed artistic gymnastics / rhythmic gymnastics competition with his future wife Sofia Coppola as one of the competitors.  It has been called "arguably Jonze's greatest music video".  Despite reaching number 17 in the UK Singles Chart, the single does not feature on either of the duo's singles compilations, "Singles 93–03" and "Brotherhood".

Earthling (film): Earthling is the 2010 sci-fi film by Clay Liford starring Rebecca Spence, Peter Greene and William Katt in lead roles.

Hello Tomorrow: Hello Tomorrow is the title of a 2005 Adidas television advertisement, and also the name of the song used in the commercial.  The 90-second spot was created by Oscar-nominated film director Spike Jonze for ad agency TBWA\Chiat\Day to advertise the adidas_1 "intelligent" sneakers.  The title song was composed specifically for the advertisement by Jonze's brother, Sam "Squeak E. Clean" Spiegel, and its lyrics were sung by Jonze's then-girlfriend, Karen O of the Grammy-nominated rock band Yeah Yeah Yeahs.  Proving to be an incredibly successful commercial, "Hello Tomorrow" received many honors; these include two Gold Lions at the 2005 Cannes Lions International Advertising Festival, three 2006 Silver Clio Awards, and a 2006 Gold EFFIE Award.

I'm Here (film): I'm Here is a 2010 sci-fi romance short film written and directed by Spike Jonze.  The film is a love story about two robots living in Los Angeles where humans and robots co-exist.  The plot is based on "The Giving Tree", and the main character is named after Shel Silverstein.  The film's robots were created by Alterian, Inc., a Los Angeles-based effects company notable for their costume design for Daft Punk.

The Giving Tree: The Giving Tree is a children's picture book written and illustrated by Shel Silverstein.  First published in 1964 by Harper & Row, it has become one of Silverstein's best known titles and has been translated into numerous languages.

Supporting paragraphs: I'm Here (film) The Giving Tree
Answer: Shel Silverstein