Glad for or glad of/ about!

[Martina Durisova]

What is the right preposition with the adjective glad?
" I am so glad for your last letter"
I would use " glad about/ or" , but I found "glad for" on the internet too.
Thank you !
Martina

[bhaisahab]

What is the right preposition with the adjective glad?
" I am so glad for your last letter"
I would use " glad about/ or" , but I found "glad for" on the internet too.
Thank you !
Martina

"glad for" doesn't sound natural to me.

[emsr2d2]

What is the right preposition with the adjective "glad"?
"I am so glad for your last letter"?
I would use "glad about/for", but I found "glad for" on the internet too.
Thank you!
Martina

You can be glad for someone when you are happy that something nice has happened to them. However, in your context, I would say something like "I was glad to receive your last letter" or "Receiving your last letter made me very glad". In both those case, "happy" sounds a little more natural but there's nothing wrong with "glad".

Please note the amendments I made to your post, marked in red above. Don't put a space after your opening quotation marks. Don't put a space before a comma, full stop, question mark or exclamation mark.