Shopaholic Ties the Knot (2002) is the third in the popular 'Shopaholic' series. It is a chick-lit novel by Sophie Kinsella, a pseudonym of Madeline Wickham. It follows the story of Becky Bloomwood and her boyfriend (later fiancé) Luke Brandon as they become engaged and plan their wedding.
The book opens with Becky living with her boyfriend Luke in Manhattan (both are from England). She has finally found her career calling as a personal shopper at Barney’s and is happily helping her best friend Suze plan her wedding. Becky's best friend, Danny, helps her making a bridemaid's dress. That night, Luke, Danny and Becky discuss about when would Becky get married. She replies that she will get married in ten years, much to Luke's disbelief. On the day of the wedding, Becky learns that Suze is pregnant. Becky is shocked when she catches Suze’s bouquet and finds a marriage proposal from Luke in it. Suddenly, she finds herself caught in the middle between her mother and Luke’s mother, both of whom want to throw her a lavish wedding, one in England and one at the Plaza in New York on the same day. On one hand, Becky wanted to get married at home. On the other, she wanted to have a gorgeous wedding at the Plaza, and being the 'special, glossy' person for the day. As she sees more and more preparations done on both sides, it's even more difficult for her to say no to either one. If she gives up the Plaza, she'll have to pay a penalty of a hundred thousand. Becky has no way of paying - and she can't possibly ask Luke or else he will get suspicious. Meanwhile, Laurel at Barney's had a row with Wlliam, who appears to be dating Amy Forrester instead. Laurel tells Becky that she also suspects Amy has been stealing her jewelry, including a green pendant her grandmother gave her. After Becky manages to get the pendant back for Laurel, Laurel promises she will help Becky with anything she asks for in return. In the end, Becky finds a great idea - first attend the Plaza wedding (and pretend to be married) and then take a private helicopter (Laurel provided it) to England and really get married at Becky's home. At the end of the novel, Becky reveals to Luke that she had booked two first-class travel-around-the-world tickets for their honeymoon.