More to explore:
I'd go for a different color scheme, but love this idea!
I love reading nooks! Possible idea for someday next to fireplace in living room
Window Seats, would be a great reading nook
Reading nook! i want this in my future house
Love the idea of the arch rather than squared off corners above this little sitting area.
cozy nook -- not sure about the wallpaper, but love the idea