Simplify the following text for a Grade 4 native English-speaking person.
Original: Kardashian wrote a book , Kardashian Konfidential , with her sisters Kim and Kourtney , which was released on November 23 , 2010 .
Simplified: She is the daughter of Kris and Rob Kardashian . She has 1 brother named Rob Kardashian Jr. 2 sisters , Kim and Kourtney .