Hannah Hart's 2nd book 'Buffering': It's about to get a lot more personal

LOS ANGELES — Hannah Hart is celebrating her upcoming 30th birthday with a new book, and this one's going to get a little more personal.

Buffering: Unshared Tales of a Life Fully Loaded offers Hart's fans a more intimate look at her life. It will be available on Oct. 18, but pre-sales began Tuesday.

"The channel is more my silly side and this is more my serious side," Hart told Mashable. "I’m about to turn 30 and there have been a lot of events in my life that people ask about ... this will be my first attempt at writing an autobiographical memoir."

The title for the book comes from Hart's idea of "boundaries + process = buffering."

"The wheel that Netflix or wherever puts in front of you while video loads," she said. "That idea that it's not loaded yet, or not ready for you to see, it's how I feel about the content of this book. It's stuff I kept close to my chest because it needed its own processing time."

Her friend Hannah Gelb did the cover art and Buzzfeed Video's Ashly Perez helped come up with the book title.

The digital influencer, who has about 2.5 million subscribers to her YouTube channel, has had a big year. 

She and pal Grace Helbig star in the upcoming Fullscreen-Legendary Entertainment's reboot ofElectra Woman & Dyna Girl. They also star in a new film Dirty Thirty alongside Mamrie Hart. 

Hart's first book My Drunk Kitchen, published in 2014, landed on the New York Times bestseller list. However, it was less an autobiography — more like a guide to eating.

Not that eating won't be a part of "Buffering." In particular, bananas.