This book depicts about the autism, its causes and its relation with the human mirror neuron system. The book shows a complete simulation of autism employing the mirror neuron system of human brain. The book also shows a model of mirror neuron system and simulation of that model for both the normal and autistic people. Finally the book concludes with the comparison of human mirror neuron system's behavior for normal and autistic case. This will be very helpful for finding the definitive cause of autism and also for finding it's treatment.