+@BuildEbook.register('simple_cover')
+@task(ignore_result=True)
+class BuildSimpleCover(BuildEbook):
+ @classmethod
+ def transform(cls, wldoc, fieldfile):
+ from librarian.cover import WLNoBoxCover
+ return WLNoBoxCover(wldoc.book_info, height=1000).output_file()
+
+