Dear Michael, 

It has been a long time since I last wrote you, hasn't it? How are you doing? How are Mr. and Mrs. Rieder? I hope you and both your parents are doing well.

I have been very busy recently. For the last two months, I've been working on my paintings for next month exhibition in Hanoi. I thought I was running too much behind the deadline, but everything turned out just fine. 

So I am writing this letter to invite you to said exhibition. It will take places at 58 Hai Ba Trung street, from December 12th to 15th. Beside my work, there are plenty of other artists' creations. It should be a very nice experience for you since you have always been a big fan of artistry.

The passing ticket is attached below. You can bring a plus one along as long as you have it printed out or on your electric devices. Please call me if there is any problem. 

I look forward to welcoming you. 

Your friend, 

Vi