KDP categories · Top KDP authors
Educational Testing Service: Amazon KDP author data
As of Nov 6, 2026, Educational Testing Service has 34 books on Amazon, 30 of them on a best-seller list in the last 30 days (best rank #1), mostly in GRE, Advanced Placement, TOEFL & TOEIC.
| Median price | $21.07 |
|---|---|
| Price range (middle 50%) | $14.75 – $38.99 |
| Median reviews | 298 |
| Total reviews | 25,050 |
| New books (30 days) | 1 |
| Breakout books (30 days) | 1 |
What stands out
- 88% of the catalog made a best-seller list in the last 30 days: the whole backlist sells, not one hit.
Educational Testing Service's best-ranked books
-
Official GRE Super Power Pack, Second Edition
by Educational Testing Service
- Price$57.60
- Rating4.6
- Reviews2,321
-
Official GRE Super Power Pack
by Educational Testing Service
- Price$38.99
- Rating4.4
- Reviews340
-
Official GRE Value Combo (ebook bundle)
by Educational Testing Service
- Price$17.98
- Rating4.6
- Reviews570
-
Official GRE Super Power Pack, Second Edition
by Educational Testing Service
- Price$72
- Rating4.6
- Reviews2,321
-
Official GRE Quantitative Reasoning Practice Questions, Volume 1, Second Edition
by Educational Testing Service
- Price$9.99
- Rating4.4
- Reviews256
-
Official GRE Verbal Reasoning Practice Questions, Second Edition
by Educational Testing Service
- Price$9.99
- Rating4.5
- Reviews238
-
The Official Guide to the HiSET Exam, Second Edition
by Educational Testing Service
- Price$21.07
- Rating4.6
- Reviews1,119
-
The Official Guide to the TOEFL iBT Test, Seventh Edition
by Educational Testing Service
- Price$40
- Rating4.6
- Reviews376
-
The Official Guide to the GRE Test, Fourth Edition
by Educational Testing Service
- Price$29.84
- Rating4.5
- Reviews65
-
The Official Guide to the GRE Revised General Test, 2nd Edition
by Educational Testing Service
- Price$18.98
- Rating4.2
- Reviews1,220
Main categories
FAQ
How many books does Educational Testing Service have on Amazon?
KDPTop tracks 34 of their books; 30 made an Amazon list in the last 30 days.
Which categories does Educational Testing Service publish in?
Their books chart most often in GRE, Advanced Placement, TOEFL & TOEIC.
How does Educational Testing Service price their books?
The median price is $21.07; half of the books cost $14.75–$38.99.
Has Educational Testing Service released new books recently?
1 new book 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.