diff --git a/src/epub_converter.py b/src/epub_postprocessor.py
similarity index 91%
rename from src/epub_converter.py
rename to src/epub_postprocessor.py
index b54eec4..6d32940 100644
--- a/src/epub_converter.py
+++ b/src/epub_postprocessor.py
@@ -27,7 +27,7 @@ from src.html_epub_preprocessor import unwrap_structural_tags, get_tags_between_
 # todo: https://docs.python.org/3/howto/unicode.html
 
 
-class EpubBookAdapter:
+class EpubPostprocessor:
     def __init__(self, file):
         self.file = file
         self.ebooklib_book = epub.read_epub(file)  # todo: log error from ebooklib
@@ -178,7 +178,7 @@ class EpubBookAdapter:
             for sub_node in self.adjacency_list[node]:
                 self.build_one_anchored_section(sub_node)
 
-        print(f'Chapter: {node.href, node.id} is split.')
+        # print(f'Chapter: {node.href, node.id} is split.')
 
     def build_anchor2soup(self):
         nav_points = self.adjacency_list[-1]
@@ -204,27 +204,28 @@ class EpubBookAdapter:
                 sub_nodes.append(sub_chapter_item)
 
         # print(f'Chapter: {title} is prepared.')
-        return ChapterItem(title, content_preprocessed, sub_nodes)
+        return ChapterItem(title_preprocessed, content_preprocessed, sub_nodes)
+
+    def convert_to_dict(self):
+        top_level_nav_points = self.adjacency_list[-1]
+        top_level_chapters = []
+
+        for nav_point in top_level_nav_points:
+            chapter = self.node2livecarta_chapter_item(nav_point)
+            top_level_chapters.append(chapter)
+
+        top_level_dict_chapters = [x.to_dict() for x in top_level_chapters]
+
+        return {
+            "content": top_level_dict_chapters,
+            "footnotes": self.footnotes
+        }
 
 
 if __name__ == "__main__":
-    adapter = EpubBookAdapter('/home/katerina/PycharmProjects/Jenia/converter/epub/calibri.epub')
-
-    top_level_nav_points = adapter.adjacency_list[-1]
-    top_level_chapters = []
-
-    for nav_point in top_level_nav_points:
-        chapter = adapter.node2livecarta_chapter_item(nav_point)
-        top_level_chapters.append(chapter)
-
-    l = [x.to_dict() for x in top_level_chapters]
-
-    tmp = {
-        "content": l,
-        "footnotes": adapter.footnotes
-    }
+    json_converter = EpubPostprocessor('/home/katerina/PycharmProjects/Jenia/converter/epub/Chaos_Engineering.epub')
+    tmp = json_converter.convert_to_dict()
 
     with codecs.open('tmp.json', 'w', encoding='utf-8') as f:
         json.dump(tmp, f, ensure_ascii=False)
 
-