To achieve clearness and clarity，you may give your letter a heading if it bsp;help to draw the addrese’s attention.You must have a clear idea of what you wish to vey in the letter，subsp;as the purpo，the attitude，and the matter ed.Only a clear mind bsp;express clearly.While drafting an outline，pay attention to the anization，as it is a key to effective business writing.There is altogether 14 parts in a business letter.A parate paragraph for eabsp;point，if necessary number eabsp;of them，is a good rule.Thus，the recipient may find eabsp;point so clear that it ’t be misuood.Sed，you should study the reader’ i and the level of the reader’s uanding，and try to imagine how he will feel about what you write.For this reason，business letter must be clear and easily uood.It is said that more than twenty words in a ntenbsp;makes reading harder.Thirdly，avoid making the idea fusing by writing the exabsp;and brief words.The following are some tips：
·U small and short words instead of big and long-winded words when they are synonyms.
·U simple words instead of plicated phras.
·U short ntenbsp;instead of long and prolix ntences.
·Except for emphasis，try to avoid using unnecessary words like adjectives，adverbs and phras.
·Do not u words hard to uand，subsp;as colloquialism，slang and ercial jargon.
·Do not u words having more than one meaning in a ntence.
ess
Clarity and ess often go hand-in-hand.Today businessmen are very busy，so clear and bsp;letters，without sacrifig pleteness，are being more and more popular.A bsp;letter is not always a short o is found that a succession of short ntences，however，has a disagreeable jerky effort and the best letters are tho whibsp;provide a mixture of ntenbsp;of varying length.A bsp;letter should be written in a simple and natural way，directly and to the point.Avoid wordiness，flowery words，redundancies and the over frequent u of subsp;jun as “and” “but” “however”，etc.
Courtesy
Here，courtesy not only means politeness，but also means thinking about the reader’s i，by expressing your enthusiasm，sideration and friendliness.So while writing，put yourlf in your reader’s shoes，and find out what really s him.An ho and professional manner may gain you cooperative partner.
Firstly，promptness is very important.No one likes to wait endlessly for a reply.So if you ot respond promptly，write and explain why and when you will write again.