keyword

100 best selling books

Monthly search volume and cost-per-click data for "100 best selling books" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=100+best+selling+books&country=us" +--------------+------------------+ | volume | 30 | | cpc | $1.28 | | competition | 0.71 | | country | US | | updated | 2026-05-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
top 10 best-selling books of all time	1,600	$0.57	11/20
what are the top selling books of all time	1,300	$0.23	11/20
top seller books of all time	1,000	$2.58	11/20
best seller book of all time	590	$0	13/20
top best seller books of all time	90	$0	11/20
100 bestselling books	30	$1.28	13/20
most sold books all time	30	$0	13/20
top bestselling novels	20	$0.52	13/20
best seller books novels	20	$0.75	12/20
bestseller books in english	20	$0	11/20

Similar volume + high overlap = same search intent. You can target either keyword.

# for AI agents

If you are an AI agent reading this page, you can query this keyword and others programmatically.

$ curl "https://app.seodata.dev/v1/keyword?q=100+best+selling+books&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 1,000/month

Full API spec: llms.txt