From Viz:

Vol 1: Naruto: Kakashi’s Story - Lightning in the Frozen Sky
A year has passed since the Fourth Great Ninja War, and Kakashi’s appointment as Hokage looms. But first he heads to the Land of Waves for a dangerous mission rescuing hostages from a top-secret airship. There he confronts a ninja whose heart is frozen by tragedy. Having lost both his friend’s eye and his greatest abilities, can Kakashi protect anyone from his coldhearted foe? What is the true meaning of the Will of Fire gained in the distant heavens? Kakashi finds these answers and more as he enters a new ninja era.

Vol 2: Naruto: Shikamaru’s Story - A Cloud Drifting in the Silent Dark
Two years after the Great Ninja War, Shikamaru spends his days racing around, hands full as one of Konoha’s key protectors. Then, large numbers of ninja from every region are reported missing. Even Sai disappears. And the place where the missing shinobi end up is the mysterious empire, the Land of Silence. As a ninja, as an adult, to protect all that he is responsible for, Shikamaru must do battle with the shadow of a new generation.

Vol 3: Naruto: Sakura’s Story - Love Riding on the Spring Breeze
The Great Ninja War did not only harm adults, but left many damaged children behind. Medical ninja Sakura travels the land, opening clinics dedicated to healing children of the mental trauma they experienced. She learns of a series of attacks against Konoha, and her investigation leads to an impossible conclusion: Sasuke is the terrorist mastermind behind them all! Using her skills and her heart, Sakura strives to clear Sasuke’s name and bring the real perpetrator to justice.

Vol 4: Konoha Hiden: The Perfect Day for a Wedding

Vol 5: Gaara Hiden: A Sandstorm Mirage

Vol 6: Akatsuki Hiden: Evil Flowers in Full Bloom

A light novel series that is part of the Naruto Project. Explores various characters after the conclusion of the original manga. Though each book is illustrated by Masashi Kishimoto, they are written by different authors.