I really wanted to nominate
Housekeeping by Marilynne Robinson because I've read other books but not her debut. Also I love the cover with the train tracks. However it does not seem that her books are offered in e-format in Canada.
I thought about nominating
Carrie by Stephen King as something outside my normal comfort zone. I did not know that was his debut novel. As mentioned previously his works scare me too much, but I've seen the movie so at least would know what to expect.