diff --git a/.gitignore b/.gitignore
index c26f7aa..99bad6f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 static
 dist
+books-2023
diff --git a/bookshelf.html b/bookshelf.html
index 6b71d43..a5ddc3d 100644
--- a/bookshelf.html
+++ b/bookshelf.html
@@ -23,7 +23,7 @@
 
     <div class="book-item">
         <div>
-        <img src="{{book.cover_image_path}}" class="cover-image"/>
+        <img src="static/{{book.cover_image_path}}" class="cover-image"/>
     </div>
     <div>
         {{ book.title }} by {{ book.author }} {% if book.published_year %} ({{book.published_year}}) {% endif %}
diff --git a/main.py b/main.py
index 0ee17b4..10e0438 100644
--- a/main.py
+++ b/main.py
@@ -108,7 +108,7 @@ def process_list(list_url):
         print("cover: {}".format(cover_url))
         image_title = book.get("title").replace(" ", "-")
         image_title = image_title.replace(":", "")
-        image_path = "static/{}.jpg".format(image_title)
+        image_path = "{}.jpg".format(image_title)
         # return item
         item = {
             "title": title,
@@ -121,33 +121,62 @@ def process_list(list_url):
     return processed_items
 
 
-def download_images(processed_items):
+def download_images(processed_items, output_dir):
     for item in processed_items:
         image_url = item.get("cover_url")
-        image_path = item.get("cover_image_path")
+        image_path = os.path.join(output_dir, item.get("cover_image_path"))
         if image_url:
             print("++ downloading {}".format(image_url))
             os.system('wget {} -O "{}"'.format(image_url, image_path))
 
 
+def load_csv(csv_path):
+    return {
+        "books": []
+    }
+
+
 if __name__ == '__main__':
+
+    # create parser
     parser = argparse.ArgumentParser(
         prog='bookshelf-generator',
         description='generates HTML for a web-page to display a bookshelf using bookwyrm or a csv as input',
         epilog='<3')
 
-    parser.add_argument('list_url')  # bookwyrm list url to use as a source input
-    parser.add_argument('-t', '--template')  # path to jinja file to use as a template for the html
+    # subparser for building website
+    subparsers = parser.add_subparsers(dest="subparser")
+    build_parser = subparsers.add_parser('generate-html')
+    bookwyrm_parser = subparsers.add_parser('bookwyrm-download')
 
+    # bookwyrm-download subparser
+    bookwyrm_parser.add_argument('list_url')  # bookwyrm list url to use as a source input
+    bookwyrm_parser.add_argument('output_dir')  # path where images should be downloaded and csv should be written
+
+    # generate-html subparser
+    build_parser.add_argument('csv_path')  # csv path to use as input
+    build_parser.add_argument('-t', '--template')  # path to jinja file to use as a template for the html
+
+    # parse args
     args = parser.parse_args()
-    print(args.list_url, args.template)
 
-    processed_items = process_list(args.list_url)
-    template_vars = {
-        "books": processed_items
-    }
-    # download_images(processed_items)
-    build_site(output_dir=OUTPUT_DIR, relative_template_path=args.template, template_vars=template_vars)
+    if args.subparser == "bookwyrm-download":
+
+        # subargs = bookwyrm_parser.parse_args()
+        print(args.list_url)
+        print(args.output_dir)
+
+        if not os.path.exists(args.output_dir):
+            os.makedirs(args.output_dir)
+
+        processed_items = process_list(args.list_url)
+        download_images(processed_items, output_dir=args.output_dir)
+        # TODO: write processed items to csv
+
+    else:
+        # TODO: load values from csv
+        template_vars = load_csv(args.csv_path)
+        build_site(output_dir=OUTPUT_DIR, relative_template_path=args.template, template_vars=template_vars)
 
 
 
diff --git a/run.sh b/run.sh
index a6c7ee6..ccc9b24 100755
--- a/run.sh
+++ b/run.sh
@@ -1 +1,5 @@
-python3 main.py "https://bookwyrm.social/list/2458/s/notplants-2023" --template="bookshelf.html"
\ No newline at end of file
+# download
+python3 main.py bookwyrm-download "https://bookwyrm.social/list/2458/s/notplants-2023" "books-2023"
+
+# build
+# python3 main.py generate-html "books-2023/books.csv" --template="bookshelf.html"