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In today’s Internet- and email-driven society, the need to write a formal letter arises less often than in the past. However, it is still occasionally necessary to present a formal letter to obtain information, to apply for an academic program or a job, to complain about a product or service, or simply to express your opinion in an effective and coherent manner.
This one is also a tricky way to go unless you have come across a very striking fact or are dealing with a controversial subject. In order for this approach to work, the statement must include something that will genuinely surprise the reader, which is difficult to do. In addition to shock value, the statement must also have direct relevance to your topic so that a strong transition can still be made into your central argument.