ET was with Tori Spelling Monday night for the release of her new book "Mommywood," and the star opened up about motherhood, her return to "90210," and the emotional open letter from her mother, Candy Spelling.

"I didn't see it but she can call me, she can e-mail me," Tori tells ET about her mother's letter. "She has all my numbers she knows exactly where I am. So if she'd like to reach out she's more than welcome to, to see the kids."

ET spoke with the mother of two Monday night at the BondSt restaurant at the Thompson Hotel in Beverly Hills, as she celebrated the release of her second book "Mommywood."

"Mommywood," in stores Tuesday, recounts the trials and tribulation of being a mom in the limelight and what it's like to raise a family while everyone is watching.

Plus you can catch Tori Tuesday night at 9 p.m. on the CW when she returns as Donna Martin on "90210."