Dear Wizards/Witches:

We are pleased to inform you that you have been accepted at Hogwarts School of Witchcraft and Wizardry. Also, we are glad to know that you will be one of us. There are something you need to know in advance.
We have four eminent houses, Gryffindor, Hufflepuff, Ravenclaw, and Slytherin. You will be chosen into one house of them.

After Admission, the only thing you need to know is to enjoy your brand-new life in your most suitable house, learn fantastic knowledge about witchcraft as well as wizardry, and start your exciting magic tour!
We look forward to your attendance on September 1st.

Sincerely.