The Bestseller Ads
Case Studies

Results From the Work.

A selection of campaigns, strategies and outcomes from authors we've worked with.

Case 01
Urban Fantasy Series

Author name withheld by agreement

Challenge

A brand new series launching with no existing audience and no ad history. Strong writing, no discoverability beyond Amazon organic.

KENP reads chart showing growth from June 2025 to December 2025
What we did
  • —Built campaigns around Book 1 as the series entry point
  • —Used landing page with pixel tracking to optimise for real readers, not just clicks
  • —Tested creative variations continuously across the first 90 days
  • —Supported with promotions and series positioning to build momentum
Outcome
  • Royalties grew nearly 8x in 6 months
  • First £1,000 month reached by month 5
  • Nearly 1 million KU page reads by month 7
  • BSR improved from 200,000 to 16,000
Case 02
Dark Romance

Author name withheld by agreement

Challenge

An established dark romance series with strong existing readership but significant room to scale. The goal was aggressive growth - more readers, more markets, higher monthly royalties.

KENP reads chart showing growth across 2025 for the dark romance series
What we did
  • —Scaled Facebook campaigns across static, video and UGC creatives
  • —Extensive creative testing to find angles that resonated at scale
  • —Expanded advertising into European markets
  • —Strong promotional pushes timed around key selling windows
  • —Maximised series value through read-through optimisation and box set strategy
Outcome
  • Royalties grew nearly 15x over 8 months
  • Over 30 million KU page reads across the series in 2025
  • 67% read-through from Book 1 to Book 2
  • Qualified for Amazon All Stars bonus — awarded to top KU performers only
Case 03
Historical Fiction

Author name withheld by agreement

Challenge

An established author with an 9-book collection but results that had plateaued. Eight months of flat performance - ads running, budget spending, nothing moving. The added complexity: all standalones. No series read-through to fall back on. Every book has to earn on its own.

KENP reads chart showing growth from 2024 through 2026 for the historical fiction catalogue
What we did
  • —Identified the strongest entry point titles across the catalogue
  • —Rebuilt campaign structure around individual book performance
  • —Tested new creative angles suited to the historical fiction reader
  • —Used promotional windows strategically to break the plateau
  • —Focused on sustainable profitability, not just volume
Outcome
  • Monthly reads grew nearly 4x from the plateau average
  • Every month of 2026 has been profitable
  • Sustained read growth running 174% above the previous baseline

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