Alyson Noël has written multiple book series. One of her bestselling series is The Immortals Series. 

The Immortals Series

Evermore tells the story of Ever Bloom. Ever begins to see auras after the death of her family and pet in a tragic accident that leaves her an orphan. Ever develops the power to  see a persons entire life history just be touching them. She tries to avoid all human contact because of her powers. This causes her to become ostracized among her high school peers. That is until she meets Damien Auguste, a beautiful and powerful individual that can bond with. 

Evermore is followed by Blue Moon, Shadowland, Dark Flame, and Night Star. The series ends with Everlasting. 

The Riley Bloom Series: Spinoff of The Immortals

Radiance is the first novel in the Riley Bloom series. The series follows Riley Bloom, Ever's younger sister in the afterlife. 

Radiance is followed by  Shimmer, Dreamland  (available as an audio book) and lastly, Whisper.

The Soul Seekers Series

Fated is the first novel in the Soul Seekers series. 

Fated is followed by, Echo (Available as an ebook), Mystic, and Horizon.