A letter of inquiry asks someone for specific information. Either you write a letter of inquiry to know about something or you are responding to a letter of inquiry. This letter lets someone know about a thing deeply, so it needs a brief explanation for the purpose to act according to demand. You also need to mention the period of time within which you need information about a product or service. To save your efforts and time we have prepared customizable and professional inquiry letter templates that can be easily used and they are available in various file formats like MS word, Apple Pages, Google docs, etc which is easy to download.