Crisis of Character: A White House Secret Service Officer Discloses His Firsthand Experience with Hillary, Bill, and How They Operate is a best-selling 2016 book by former United States Secret Service Uniformed Division officer Gary J. Byrne with Grant M. Schmidt that purports to describe President Bill Clinton and First Lady Hillary Rodham Clinton as they resided in the White House during portions of the 1993–2001 Clinton administration, including stories of his supposed infidelities and her supposedly imperious manner.
 The book also portrays a volatile relationship between the First Couple.
The "Hillary Doctrine" is a term used to describe the agenda of former United States Secretary of State Hillary Rodham Clinton.
 In particular, the Hillary Doctrine refers to talks given by Clinton arguing that women's rights and violence against women should be considered issues of national security.
 The doctrine encompasses stances she has held before, during, and after her tenure as secretary.
Dear Socks, Dear Buddy: Kids' Letters to the First Pets is a 1998 children's book written by First Lady of the United States Hillary Rodham Clinton.
 It concerns the two pets that lived in the White House during the Clinton administration, Socks the cat and Buddy the dog.
Buddy (August 7, 1997 – January 2, 2002), a male chocolate-colored Labrador Retriever, was one of two pets kept by the Clinton family while Bill Clinton was President of the United States.
 The Clintons' other pet was a cat named Socks.
A Woman in Charge: The Life of Hillary Rodham Clinton is a biography of United States Senator, and former First Lady of the United States, Hillary Rodham Clinton that was written by Carl Bernstein and published on June 5, 2007, by Alfred A. Knopf.
An Invitation to the White House: At Home with History is a 2000 coffee table book written by First Lady of the United States Hillary Rodham Clinton.
 Published by Simon & Schuster, it describes life at the White House during the Clinton administration, including the renovation and refurbishment projects that were done and the emphasis on American cuisine.
Anthony Dean "Tony" Rodham (born 1954) is an American consultant and businessman who is the youngest brother of former First Lady of Arkansas, First Lady, Senator from New York and Secretary of State, Hillary Rodham Clinton, and the brother-in-law of former U.S. President Bill Clinton.
 His business dealings have sometimes appeared to take advantage of his connections to the Clintons and accordingly have sometimes attracted public scrutiny.
The 2008 presidential campaign of Hillary Rodham Clinton, then junior United States Senator from New York, was announced on her website on January 20, 2007.
 Hillary Clinton was previously the First Lady of the United States and First Lady of Arkansas prior to her election as U.S. Senator from New York.
 She is also the wife of former President Bill Clinton.
 Clinton was the source of much media speculation since having expressed interest in being a candidate in the 2008 presidential election since at least October 2002.
Her Way: The Hopes and Ambitions of Hillary Rodham Clinton is an investigative biography about United States Senator, and former First Lady of the United States, Hillary Rodham Clinton that was written by Jeff Gerth and Don Van Natta, Jr. and published on June 8, 2007, by Little, Brown and Company.
The Seduction of Hillary Rodham is a 1996 book about the early years of Hillary Rodham Clinton written by David Brock.

Question: What was the book written by Hillary Rodham Clinton in 1998 about?
Answer: two pets