diff --git a/lib/books.py b/lib/books.py
index 552bbf2..11a5f23 100644
--- a/lib/books.py
+++ b/lib/books.py
@@ -36,7 +36,8 @@ class Book:
 
         self.sections = []
         query.prepare(
-            "SELECT * FORM sections WHERE book_id = :book_id " "ORDER BY sequence"
+            "SELECT * FORM sections WHERE book_id = :book_id "
+            "ORDER BY sequence"
         )
         while query.next():
             self.sections.append(query.value("contents"))
@@ -95,7 +96,8 @@ class Book:
         uuid = self.metadata["identifier"]
         query = QSqlQuery()
         query.prepare(
-            "SELECT COUNT(*) AS number, book_id FROM books b " "WHERE b.uuid = :uuid"
+            "SELECT COUNT(*) AS number, book_id FROM books b "
+            "WHERE b.uuid = :uuid"
         )
         query.bindValue(":uuid", uuid)
         if not query.exec():
@@ -137,7 +139,9 @@ class Book:
                     newdom.createTextNode(cast(xml.dom.minidom.Text, elm).data),
                 )
 
-            newelm: xml.dom.minidom.Element = newdom.createElement(elm.localName)
+            newelm: xml.dom.minidom.Element = newdom.createElement(
+                elm.localName
+            )
             node = elm.firstChild
             while node:
                 elm = cast(xml.dom.minidom.Element, node)