keyword

best books on biology

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

$ curl "https://api.seodata.dev/v1/keyword?q=best+books+on+biology&country=us" +--------------+------------------+ | volume | 390 | | cpc | $0.55 | | competition | 1 | | country | US | | updated | 2026-06-26 | +--------------+------------------+

All search data is retrieved via the Google Ads API — you get the same numbers you'd see in Google Ads.

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword	volume	cpc	overlap
books about biology	5,400	$0.59	17/20
best book for biology	390	$0.56	16/20
best books for biology	390	$0.55	16/20
best books biology	390	$0.55	14/20
best books for biologists	390	$0.55	14/20
best books of biology	390	$0.55	13/20
best biology book	390	$0.55	12/20
best book of biology	390	$0.55	12/20
good books on biology	390	$0.55	11/20
great biology books	390	$0.56	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://api.seodata.dev/v1/keyword?q=best+books+on+biology&country=us" Returns: volume, cpc, competition Country: &country=us (50+ supported, 2-letter ISO) Auth: none for 20/day, register for 500/month, $4.99/mo unlimited

Full API spec: llms.txt