Transcript for Lena Dunham Is 'Not That Kind of Girl'
She nails it everybody. Pretty sad if I didn't. Downstairs to robin. Lena Dunham is the star, creative force behind the HBO sensation, "Girls." And can't wait for January. She's an author. And adding that to her list of accomplishments. Her brand new book, "Not that kind of girl," a young woman tells what she's learned. Thank you. Thank you for having me. You got rave reviews. And George is blushing because you said he's handsome. I'm not the first one to have said it. George is a sexual icon. I wish he was down here. Is it true blonds have more fun? I was a blond child. I feel connected to being blond. But what happens when you're blond, there's some prehistoric reaction in stupid men where they start holding more doors open for you, hailing cabs. I have had a lot of services rendered to me that did not avail me when I was a brunette. I have learned more about you. Doesn't surprise me hearing that. It's beautiful. Thank you. It's a conversation with you all over the place. And it's who you are. What inspired you to write this? You have so much going on. You know with television -- I love my collaborators at "Girls" so much. It takes a village to make a television show. It's interactive and social. I wanted to get back to the intimate relationship with the page as a writer of prose. It's like me going back into my bed as a teenager and journaling in a slightly-more evolved form. The illustrator is good. We have been friends since I was 3 years old. You wanted her to do the art project for you. And get rave reviews from the teacher. Now it's a bigger scale. It's a beautiful book. Thank you. You share some of the journal. We're not going to make you read what you ate in one day in particular. That was the worst day of my life. Thank you. Not make you relive that. Young women, concerned about body image, and you have come to peace. That was in some ways the hardest chapter. The sexual humiliations, the challenging relationship. But it's being clear about the fact that I have spent a lot of time thinking about food. I spent a lot of my career trying to break down some of the negative -- the negative forces that the media exerts on women in trying to control their body image. So for me, it felt very -- it felt very sort of, you know, anathema to what I am to admit that I too have struggled with the concept of sort of perfection. And I think it's something we're all dealing with every day. But I have to say when you love your job and you love what you do and you're sort of engaged, you really feel like a tool being put to its proper use, you think of food as fuel. And you think of it as a way to get to where you need to go and less sort of your demise. I agree with you, diet is a four-letter word. Diet is a four-letter word is something I learned from my grandmother. I will take it to the grave. Therapy and me. That's a chapter that really resonates with a lot of people. And you talk about from a young age that you were afraid of -- just about everything. And you still are dealing with that in some ways. Yeah, you know. One of the reasons it was so important to talk about the relationship to therapy and the fact I have obsessive-compulsive disorder, there's a conversation about mental health that needs to happen that we are just at the beginning of. And I think all of us share our struggles with the world inside our heads, whether big or small, can help other people to normalize their experiences. And, you know, I definitely have struggled with anxiety, with obsessive-compulsive disorder, and I was lucky to have parents with a forward-thinking attitude. Putting me into therapy at a young age and giving me tools to move forward. It's part of the reason we see so many shootings in the country. There's a conversation about mental health that is just as important as the other dialogues nationally. And you go there in so many different ways in the book. I love your folks. They come shining through in this. I love them too. As I said before, they had the foresight to put me into therapy, encourage me to create. And I feel the book is dedicated to them, for good reason. I can't wait for the fourth season of "Girls." The "Girls." The "Girls" are back. New hair cuts and guest stars. Ready to rock and roll. We were talking to our writer, Mitch, who fell in love with you. Love Mitch. And "Guys and dolls" and singing in a musical. Any secret talent? Pafrm perform in "Guys and dolls." My accent is not great. It's like -- ? a person has has a cold ? Ladies and gentlemen, Lena Dunham. That's the most you are going to get for that. You are a delight. As are you. And thank you for talking to me. And I hope that you enjoyed the book. I'm glad you're that kind of girl. Knot th"not that kind of girl" is in stores today.
This transcript has been automatically generated and may not be 100% accurate.