Dear There is many book available in market . But i strongly recommend Shirley Taylor "Model Business Letters, E-Mails & other business documents" . refer new edition . Regards Sameer
If you are knowledgeable about any fact, resource or experience related to this topic - please add your views using the reply box below. For articles and copyrighted material please only cite the original source link. Each contribution will make this page a resource useful for everyone.