Dr. Ariel has worked with Asperger-neurotypical couples for years.
Whether you or your partner has Asperger syndrome, this book will help you better understand Aspergers. Dr. Ariel stands apart from many marriage therapists in that she understands many Asperger characteristics and helps both spouses better understand each other.
She includes loads of practical problem solving exercises that would help any marriage, not just an Aspergers-NT marriage.
Read my article, Keep Your Marriage Strong with These Organization Tips, as an example of one of her helpful exercises.