The 29-year-old singer- who is in a relationship with her former agent Jason Trawick - recently read Don Miguel Ruiz`s `The Mastery of Love - A Practical Guide To The Art of Relationship` - and while she didn`t learn anything new from the tome, it reminded her of some attitudes and feelings she previously had.
She said: "The last book I read was `The Mastery Of Love`. It`s basically an analysis of love and what it means to love.
"It goes through all the different aspects of love. Who you are as a person, knowing yourself before you even attempt to love anyone else, that sort of thing. It`s really well-written and thought-provoking.
"It`s very cool. It`s not so much about learning something, it`s one of those things where you already know this stuff, but it`s good to instil it in yourself again."
Despite her massive record sales and string of awards she has amassed throughout her career, Britney believes success comes down to how she feels aboutherself.
She told Stylist magazine: "For me, success is a state of mind. I feel like success isn`t about conquering something, it`s being happy with who you are."