/**
  * Find volumes in the Google Books database by the publish name.
  *
  * @param string $publisher
  * @param int    $start
  * @param int    $count Default: VolumesSearch::MAX_RESULTS
  *
  * @return Volumes
  */
 public function lookupByPublisher($publisher, $start = 0, $count = VolumesSearch::MAX_RESULTS)
 {
     /** @var VolumeSearchQuery $query */
     $query = new VolumeSearchQuery();
     $query->setPublisher($publisher);
     return $this->lookup($query, $start, $count);
 }