seodata.dev

keyword

most challenging books to read

Monthly search volume and cost-per-click data for "most challenging books to read" in US.

$ curl "https://app.seodata.dev/v1/keyword?q=most+challenging+books+to+read&country=us" +--------------+------------------+ | volume | 2,400 | | cpc | $0.46 | | competition | 0.05 | | country | US | | updated | 2026-03-29 | +--------------+------------------+

# related keywords

Keywords with overlapping search results, ranked by SERP similarity.

keyword volume cpc overlap
challenging books 2,900 $0.36 17/20
hardest book to read 2,400 $0.46 20/20
hardest books to read 2,400 $0.36 20/20
hardest novels to read 2,400 $0.46 20/20
most difficult books to read 2,400 $0.46 20/20
hardest novel to read 2,400 $0.36 13/20
most challenging books 140 $0 14/20
most difficult books 140 $0 13/20
the hardest books to read 140 $1.19 13/20
the most difficult book to read 140 $1.19 13/20

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=most+challenging+books+to+read&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