diff --git a/internal/collection_service.go b/internal/collection_service.go
index 590c95b..32c7e81 100644
--- a/internal/collection_service.go
+++ b/internal/collection_service.go
@@ -23,6 +23,7 @@ func (cfg *BookclubServer) AddBookToCollection(isbn string, userId uint) (Book,
 	return book, nil
 }
 
+// Searches for the given book within the network of the given user.
 func (cfg *BookclubServer) SearchBookInNetwork(userId uint, isbn string) ([]User, error) {
 
 	//get linked users