KDP categories · Top KDP authors
William Star: Amazon KDP author data
As of Nov 6, 2026, William Star has 97 books on Amazon, 22 of them on a best-seller list in the last 30 days, mostly in Driver's Education, Study & Test-Taking Skills.
| Median price | $15.99 |
|---|---|
| Price range (middle 50%) | $15.99 – $18.99 |
| Median reviews | 1 |
| Total reviews | 2 |
| New books (30 days) | 22 |
| Breakout books (30 days) | 0 |
What stands out
- 22 new books in the last 30 days.
William Star's best-ranked books
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California Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (FULL COLOR DMV PREP SERIES)
by William Star
- Price-
- Rating4.0
- Reviews1
- Published2026-07
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Colorado Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (FULL COLOR DMV PREP SERIES)
by William Star
- Price-
- Rating5.0
- Reviews1
- Published2026-07
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Nevada Driver's License Exam Prep: Study Guide, Road Signs & 350+ Practice Tests to Help You Pass the Written Knowledge Test (USA DMV Permit Study Books)
by William Star
- Price$15.99
- Reviews-
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Alaska Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (USA DMV Permit Study Books)
by William Star
- Price-
- Reviews-
- Published2026-09
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Illinois Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (COLOR) (FULL COLOR DMV PREP SERIES)
by William Star
- Price-
- Reviews-
- Published2026-07
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Maryland Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (FULL COLOR DMV PREP SERIES)
by William Star
- Price-
- Reviews-
- Published2026-07
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Montana Driver's License Exam Prep: Study Guide, Road Signs & 350+ Practice Tests to Help You Pass the Written Knowledge Test (USA DMV Permit Study Books)
by William Star
- Price-
- Reviews-
- Published2026-09
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Delaware Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (USA DMV Permit Study Books)
by William Star
- Price-
- Reviews-
- Published2026-09
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North Dakota Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (USA DMV Permit Study Books)
by William Star
- Price-
- Reviews-
- Published2026-08
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Massachusetts Driver's License Exam Prep: Study Guide, Road Signs & Practice Tests to Help You Pass the Written Knowledge Test (FULL COLOR DMV PREP SERIES)
by William Star
- Price-
- Reviews-
- Published2026-07
Main categories
FAQ
How many books does William Star have on Amazon?
KDPTop tracks 97 of their books; 22 made an Amazon list in the last 30 days.
Which categories does William Star publish in?
Their books chart most often in Driver's Education, Study & Test-Taking Skills.
How does William Star price their books?
The median price is $15.99; half of the books cost $15.99–$18.99.
Has William Star released new books recently?
22 new books in the last 30 days.
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.