Former US President Joe Biden said his cancer treatment will limit his ability to promote his upcoming memoir, Promise Me, America, which is scheduled for release on Nov. 17.In a lengthy statement on X, Joe Biden said his doctors remain encouraged by his response to treatment but acknowledged that his health has affected his schedule.“Some days are better than others. It hasn't stopped me. But sometimes it slows me down. What that means is, unfortunately, I won’t be able to do as many conversations about my book as I’d hoped.”President Biden Delivers Remarks In The Rose Garden After Election Of Donald Trump - Source: GettyJoe Biden said the memoir covers his presidency, including the challenges he faced, the decisions he made, and his views on America's role in the world.He also described the book as a reflection of his faith in the American people and democratic self-governance.“My presidential memoir, PROMISE ME, AMERICA, is coming out on November 17th. I hope you'll read it. It covers my years as President. The challenges we faced, the decisions I made, and why I made them. It's about who we are as a nation. What we stand for. And America's role in the world.”Joe Biden continued:“More than anything, it's about my faith in the American people and the great American experiment in self-governance and democracy.”Joe Biden reveals he received cancer diagnosis while writing memoir Promise Me, AmericaThe former president revealed his cancer diagnosis in May 2025 after doctors found a prostate nodule during an examination. His office later said the cancer had spread to his bones.Joe Biden said his family has been encouraged by the prayers, well wishes, and kind words he has received during his treatment.2024 Democratic National Convention: Day 1 - Source: Getty“While writing the book, I was diagnosed with cancer, a disease known all too well to millions of Americans and their families. My doctors continue to be encouraged by how I've responded to treatment. And the prayers and kind words and well wishes from so many of you have meant more to me and Jill and our family than you can ever know.”The memoir will be released as Biden continues to limit his public schedule. He ended his message by recalling advice from his father:“Champ, when you get knocked down, get up.”He also framed the book around his belief in the principles of equality and democracy, writing:“Promise Me, America, we'll never forget it.”Also Read: "Don't put it off": Joe Biden says prostate cancer treatment "worked" as he urges men to get screenedAlso Read: Lara Trump blames Biden and “clickbait culture” for Republicans' defeat, seemingly ignoring father-in-law’s AI image attacksAlso Read: Hunter Biden says he’s “only a little bit” gay on Luke Beasley’s podcast