Readers across the world have been snapping up copies of Barack Obama’s new memoir A Promised Land, but at least two people aren’t interested—his daughters.

The former president appeared on Jimmy Kimmel’s talk show on Thursday, and noted that his daughters Sasha and Malia are looking elsewhere for reading material.

“Their attitude is, we’ve got better things to do than to read your boring rants and raves,” Obama explained. “They promise at some point they will. I think it took them 10 years before they picked up my first book, so I suspect by the time they’re 30, they will have read it.”

Kimmel asked Obama if he made the book so long so President Donald Trump wouldn’t read it.

“I don’t think it would have had to be 700 [pages] to make sure he doesn’t read it, from what I hear,” Obama quipped. “I didn’t start off wanting to write a book that long…I didn’t want to put everything in footnotes or endnotes, because...when I read, I skip over those. I never look at that stuff.”

Kimmel noted that Obama’s memoir sold nearly 900,000 copies on its first day on sale, and asked the former president how that compared to Michelle Obama’s 2018 book Becoming.

“It’s a tad more, but I’m not rubbing it in over dinner,” Obama said. “Although in truth, Michelle’s attitude is, boy, you go out and sell some books, that’s fine, because that will pay for some of my shoes.”

Michael Schaub is a Texas-based journalist and regular contributor to NPR.