NORMAL LETTER: it should be:

• in the correct format
• short and to the point → concise and relevant
• free of any grammatical or spelling mistakes
• avoid everyday, colloquial language
• avoid contractions
• avoid emotive, subjective language
• avoid vague words

INFORMAL LETTER:

- similar to the spoken language

STRUCTURE:

Address and date:

• The addess of the sender is written in the right hand corner
• The address and the name of the reciving is written in the left, after the sender’s one. After that leave a line and write the date

Salutation:

• dear…,
• Sirs, Madam → formal
• Mrs, Mr, Ms.. → formal
• Name or nickname→ informal

Content: the text should be divided into paragraph:

• Introduction: it gives an idea about what you are writing to them with a short summary of the main topic of your letter.
• Body: the message you want to give, it conteins any details you may want to convey
• Conclusion: it sums up  the content of the letter.

Ending a letter 

• Informal letters:
• love
• Yours
• Best wishes
• Missing you lots
• Sign it

• Yours respectfully 
• Your acknowledgement will oblige 
• Awaiting a speed reply 
• Your sincerely 
• We are, yours truly
• Sign you name directly below these and then print the signature below them.