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Measure series performance, with ease.

See how readers move through your series, and what a new reader could be worth.

14 days free. No credit card required.

Read-through across series, showing where readers drop off as the books progress

See how readers move through your series.

Read-through estimates how many readers continue from one book to the next. See which series keep readers coming back and where the biggest drops happen.

Book Report does the work.

Book Report automatically gathers your data, detects your series, and calculates read-through and earnings per reader. You get a clear view of every series, without a spreadsheet to build or maintain.

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Estimate what a new reader could be worth.

Earnings per reader estimates how much you could earn from someone who starts a series, including the books they may go on to read. Use it to help judge what you can afford to spend finding new readers.

See your earnings after ad spend
Earnings per reader for each series, with each book's contribution shown in a stacked bar

Compare your series performance.

Sales, Kindle Unlimited and free downloads.

Look at sales and estimated Kindle Unlimited reads together or separately. Include or exclude free downloads to see how they affect your read-through and earnings per reader.

Look closer at one series.

Compare the same series across marketplaces, formats or years. See where it performs best and how it has changed over time.

“The series readthrough calculator helps me to gage readthrough and series profitability.”

Explore your series performance.

After your free trial, Book Report is free if you track less than $1,000 a month in publishing earnings. Paid plans start at $19 a month. See pricing.

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14 days free. No credit card required.