Roland S. Owens 的 KDP 数据
截至 2026 年 11 月 6 日,Roland S. Owens 在 Amazon 有 21 本书,近 30 天有 17 本上过榜,最好排名 #3,主要在Testing & Certification、Repair、汽车。
21Amazon 上的书
17近 30 天上榜书
4.5平均评分
| 价格中位数 | $30.99 |
|---|---|
| 价格区间(中间 50%) | $15.99 – $30.99 |
| 评论中位数 | 3 |
| 评论总数 | 60 |
| 近 30 天新书 | 0 |
| 近 30 天突围新书 | 0 |
数据解读
- 近 30 天 81% 的书上过榜,整个书目都在卖,不靠单本。
- 定价中位 $30.99,比主类目「Testing & Certification」的中位价高 55%。
Roland S. Owens 排名最好的书
-
ASE A2 Automatic Transmission and Transaxle Test Prep: Automotive Service Excellence Study Guide with 1,000 Practice Questions, Torque Converter, Valve ... Explanations (ASE Test Preparation Book 17)
作者 Roland S. Owens
- 价格$15.99
- 评论-
-
ASE G1 Maintenance and Light Repair Test Prep: Automotive Service Excellence Study Guide with 1000+ Practice Questions, Brake Systems, Suspension, and ... Explanations (ASE Test Preparation Book 7)
作者 Roland S. Owens
- 价格$15.99
- 评分5.0
- 评论3
-
ASE A8 Engine Performance Test Prep: Comprehensive Study Guide with 1,000+ Practice Questions, Essential Strategies and Answer Explanations to Pass the Certification Exam (ASE Test Preparation)
作者 Roland S. Owens
- 价格$30.99
- 评分5.0
- 评论4
-
ASE A2 Automatic Transmission and Transaxle Test Prep: Automotive Service Excellence Study Guide with 1,000 Practice Questions, Torque Converter, ... Answer Explanations (ASE Test Preparation)
作者 Roland S. Owens
- 价格$30.99
- 评论-
-
ASE A7 Heating and Air Conditioning Test Prep: Automotive Service Excellence Exam Prep with 1,000 Practice Questions, Refrigerants, Compressors, Scan ... Explanations (ASE Test Preparation Book 5)
作者 Roland S. Owens
- 价格$15.99
- 评论-
-
ASE A7 Heating and Air Conditioning Test Prep: Automotive Service Excellence Exam Prep with 1,000 Practice Questions, Refrigerants, Compressors, Scan ... Answer Explanations (ASE Test Preparation)
作者 Roland S. Owens
- 价格$30.99
- 评论-
-
CNML Study Guide 2026–2027: Certified Nurse Manager and Leader Exam Prep with 2,000+ Practice Questions, Human Resource Management, Financial Stewardship, and Full Answer Explanations
作者 Roland S. Owens
- 价格$39.76
- 评分5.0
- 评论1
-
ASE A5 Brakes Test Prep: Complete Study Guide with 1,000 Practice Questions, Essential Strategies and Answer Explanations to Pass the Certification Exam (ASE Test Preparation)
作者 Roland S. Owens
- 价格$30.99
- 评分4.5
- 评论5
-
CNML Study Guide 2026–2027: Certified Nurse Manager and Leader Exam Prep with 2,000+ Practice Questions, Human Resource Management, Financial Stewardship, and Full Answer Explanations
作者 Roland S. Owens
- 价格$19.99
- 评分5.0
- 评论1
-
CTS Certified Technology Specialist Exam Prep: Complete Study Guide with 2000 Practice Questions, AV Signal Flow, System Integration, and Full Answer Explanations
作者 Roland S. Owens
- 价格$38
- 评分4.4
- 评论8
主要上榜类目
常见问题
Roland S. Owens 在 Amazon 有多少本书?
KDPTop 跟踪到 21 本,近 30 天有 17 本上过 Amazon 榜单。
Roland S. Owens 主要写哪些类目?
上榜最多的类目是Testing & Certification、Repair、汽车。
Roland S. Owens 的书一般卖多少钱?
定价中位数 $30.99,一半的书在 $15.99–$30.99 之间。
Roland S. Owens 最近出新书了吗?
近 30 天新上 0 本。
数据说明
数据来自 KDPTop 每天对 Amazon 公开榜单页面的抓取,中位数基于最新一期畅销榜。机会分综合了评论门槛、低评论书占比、榜单更替、新书占比和价格,0–100 分,越高越容易进入。