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You must complete all documents required to obtain a Belgium Schengen visa and have them translated into English, French, German or Dutch. Applications for all types of Schengen visas to Belgium should include the following basic documents required:
A valid passport
Passport size personal photos
Schengen visa application form
Fingerprints (biometric data)
Travel medical insurance
Schengen visa fee
Documents related to your trip:
The reason for the visit.
The place where you will be staying (housing).
How will you finance your trip (financials).
Proof that you will leave Belgium before your visa expires. This is often in the form of a paid round-trip airfare (proof of return).

You must complete all documents required to obtain a Belgium Schengen visa and have them translated into English, French, German or Dutch. Applications for all types of Schengen visas to Belgium should include the following basic documents required:
A valid passport
Passport size personal photos
Schengen visa application form
Fingerprints (biometric data)
Travel medical insurance
Schengen visa fee
Documents related to your trip:
The reason for the visit.
The place where you will be staying (housing).
How will you finance your trip (financials).
Proof that you will leave Belgium before your visa expires. This is often in the form of a paid round-trip airfare (proof of return).

You can address the person who will invite you to visit Belgium to send you the invitation letter