The Fall of Reach
The Flood
First Strike

James Hannah
The A to Z of You and Me

Ashley C Harris
Troll Whispers

Neil Patrick Harris
Neil Patrick Harris: Choose Your Own Autobiography

Lisi Harrison
The Dirty Book Club

Wil Haygood
The Butler: A Witness to History 

Christina Henry
The Mermaid

Neil Hilborn
Our Numbered Days

Anthony Horowitz