Travis Kelce has been spending his off-season dabbling with acting and making surprise appearances with Taylor Swift on tour, but he’s also been busy working on his podcast with brother Jason. Now, the relationship between the two siblings are explored in a new children’s book, that’s quickly shot to number one on the Amazon charts.

“The Kelce Brothers: A Little Golden Book Biography,” is out October 15 and offers a kid-friendly take on growing up Kelce. Available for pre-order now, the book is already topping Amazon’s children’s sports biographies list and it’s on sale for just $5.99.

The Kelce brothers book chronicles the siblings’ path to the NFL, from growing up in Ohio, to both attending University of Cincinnati, to their rise to fame as Super Bowl-winning football players.

According to the publisher, the book also talks about what the superstar athletes are like off the field as well, with a look into their family life and hobbies (while Taylor Swift has her own “Little Golden Book Biography,” it’s not clear if she’ll be mentioned in the Kelce brothers edition).

The 24-page book is written by children’s author Apple Jordan, with illustrations from Filipino artist, Macky Pamintuan, who also worked on Tom Brady’s “Little Golden Book Biography.” The Kelce brothers children’s book is due out this October. Order your copy for $5.99 here.

Another Travis Kelce kids book to pick up online? Amazon has “Who Is Travis Kelce?” available for just $5.99 here. Part of the New York Times bestselling series from Who HQ, the 56-page book is designed for readers ages 8-12, offering insight into how Kelce overcame challenges and roadblocks to make it to the NFL.

With chapter titles like “A Rough-­and-­Tumble Childhood” and “A Second Chance,” the book chronicles Kelce’s competitiveness as a child, his (almost) lost scholarship in college, and how he changed his attitude and mindset to become a Super Bowl champ.

A number-one bestseller for children’s books in the U.S., “Who Is Travis Kelce?” encourages fans and readers of all ages to dream big and reach for excellence. Find the Travis Kelce kids book here.

Both of these are unofficial books of course. Neither Jason nor Travis Kelce have written official books as of yet — their podcast is still the only place to currently hear from them directly.