"Loving Isaac" by Heather Kaufman

I'm finally coming out of my book hangover from this book.  Four days of book hangover -- that's how powerful Loving Isaac is.

Single mom Hana moves in with her sister Kara's family in Oklahoma, bringing with her an autistic son named Isaac and a wagonload of emotional baggage.  She makes new friends, rekindles her relationship with her sister, and begins to find hope for her future.  She also starts attending church for the first time in years and finds healing and friends...