Photo courtesy artist

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Tegan and Sara on Sunday marked the 10th anniversary of their So Jealous LP by announcing an upcoming book collection.

Titled So Jealous X, the book will reflect on what the duo describes as "a huge turning point in our career," captured with old photos and memories shared by those involved in the album, its creation and the subsequent tour.

Additionally, the set will also feature three "discs with over 20 songs including previously unreleased demos and b-sides, new remixes, and covers."

Pre-orders for the collection will begin in December.