Example json aggregated review

<script type="application/ld+json">
{
  "@context": "https://schema.org/",
  "@type": "Book",
  "name": "Super Book",
  "description": "Ultra interesting. Super impressive.",
  "aggregateRating": {
    "@type": "AggregateRating",
    "ratingValue": "88",
    "bestRating": "100",
    "ratingCount": "20"
  }
}
</script>