diff --git a/extract-cover b/extract-cover
new file mode 100755
index 0000000..38a1ba8
--- /dev/null
+++ b/extract-cover
@@ -0,0 +1,11 @@
+#!/bin/sh
+# Extract cover image from the given media (e.g. M4B or MP3)
+for fn in "$@"; do
+  cover_jpg="$(mktemp -u $(dirname "$fn")/cover-XXXXX.jpg)"
+  if ffmpeg -v error -i "$fn" -map 0:v -map -0:V  -c copy "$cover_jpg"; then
+    echo "$cover_jpg"
+  else
+    rm -f "$cover_jpg"
+    echo "couldn't extract cover from $fn" >&2
+  fi
+done