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Julie Sykes: Amazon KDP author data
As of Nov 6, 2026, Julie Sykes has 25 books on Amazon, 15 of them on a best-seller list in the last 30 days (best rank #3), mostly in Mermaids & Mermen, Mermaids, Growing Up & Facts of Life.
| Median price | $6.99 |
|---|---|
| Price range (middle 50%) | $5.47 – $8.99 |
| Median reviews | 40 |
| Total reviews | 16,393 |
| New books (30 days) | 2 |
| Breakout books (30 days) | 1 |
What stands out
- 60% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
- Median price $6.99, 40% above the median of their main category, Mermaids & Mermen.
Julie Sykes's best-ranked books
-
Unicorn Academy: Rainbow of Adventure Boxed Set (Books 1-4)
by Julie Sykes
- Price$12.67
- Rating4.8
- Reviews6,091
- Published2020-04
-
Mermaid Academy: Millie and Storm
by Julie Sykes
- Price$10.48
- Rating4.8
- Reviews11
-
Mermaid Academy #1: Isla and Bubble
by Julie Sykes
- Price$4.99
- Rating5.0
- Reviews8
-
Mermaid Academy: Cora and Sparkle
by Julie Sykes
- Price$4.66
- Rating4.8
- Reviews33
-
Mermaid Academy #4: Amber and Flash
by Julie Sykes
- Price$6.99
- Rating5.0
- Reviews8
-
Mermaid Academy #3: Maya and Rainbow
by Julie Sykes
- Price$6.99
- Rating5.0
- Reviews5
-
Mermaid Academy: Harper and Splash
by Julie Sykes
- Price$10.48
- Rating4.5
- Reviews12
-
Mermaid Academy: Amber and Flash
by Julie Sykes
- Price$8.99
- Rating4.4
- Reviews16
-
Mermaid Academy: Maya and Rainbow
by Julie Sykes
- Price$8.99
- Rating4.3
- Reviews18
-
Mermaid Academy: Isla and Bubble
by Julie Sykes
- Price$8.99
- Rating4.5
- Reviews45
Main categories
FAQ
How many books does Julie Sykes have on Amazon?
KDPTop tracks 25 of their books; 15 made an Amazon list in the last 30 days.
Which categories does Julie Sykes publish in?
Their books chart most often in Mermaids & Mermen, Mermaids, Growing Up & Facts of Life.
How does Julie Sykes price their books?
The median price is $6.99; half of the books cost $5.47–$8.99.
Has Julie Sykes released new books recently?
2 new books in the last 30 days, 1 of which reached a Best Sellers list.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.