Emily Wilde's Encyclopaedia of Faeries by Heather Fawcett

Emily Wilde is good at many things: she is the foremost expert on the study of faeries; she is a genius scholar and a meticulous researcher who is writing the world's first encylopaedia of faerie lore. But Emily Wilde is not good at people So when she arrives in the hardscrabble village of Hrafnsvik, Emily has no intention of befriending the gruff townsfolk. Nor does she care to spend time with another new arrival: her dashing and insufferably handsome academic rival Wendell Bambleby

But as Emily gets closer to uncovering the secrets of the Hidden Ones - the most elusive of all faeries - she also finds herself on the trail of another mystery: who is Wendell Bambleby, and what does he really want? To find the answer, she'll have to unlock the greatest mystery of all - her own heart.