So, the first one is Romantic 1. His letters are usually full of compliments about your face, body, smile, etc. He will write you love letters about his erotic thoughts and forget to provide you with the necessary information about his age, number of children and so on. This type of men usually enjoys flirting and is not going to build serious relations.
The next one is Romantic 2. Those men are really focused on serious relationships and creating a family. In their letters they will write you about their hobbies, work, interests in details, they will point out even the name of their favorite cat. They will open their soul in your correspondence. It is usually pleasant and easy to talk to them. They continue thinking that Russian women are the most beautiful women in the world.
The third type is Optimist. They hope to meet in each woman their great love or new friend. Those men will write you in details about their life and the life of their friends, will be interested in events in the country and weather. It is very pleasant to correspond with them. However if you want a serious relationship with this type of men you should be a leader in your relationship.
There are also Pragmatics. These men like informing you about their physical parameters, age, financial status, education. They will also tell you their requirements to the would-be wife.
An amateur collector will send you many love letters and in the first letter will ask you to send revealing photos. You will immediately understand his goals.
So, you can make a choice even through the correspondence. I hope that the article will help you to understand who is really who.