Can you help to find a book?

[Wolodymyr]

Serhii,
it's been almost a month now and I haven't replied. hope that you enjoyed your seminar.

So far my father spoke to his neice, and got the phone number of the author Maryia Bonatska. He phoned her and they had a long chat, it turns out that she went to school with his brother, so she was a lifelong friend.

Wolodymyr

[Serhii]

I am very happy to help you all ! I think it is wonderful !