L.K. Duncan 的 KDP 数据
L.K. Duncan 在 Amazon 有 15 本书，近 30 天有 14 本上过榜，最好排名 #3，主要在Civil Service、指南、面试。
15Amazon 上的书
14近 30 天上榜书
4.8平均评分
| 价格中位数 | $16.99 |
|---|---|
| 价格区间（中间 50%） | $9.99 – $19.52 |
| 评论中位数 | 15 |
| 评论总数 | 212 |
| 近 30 天新书 | 14 |
| 近 30 天突围新书 | 11 |
数据解读
- 近 30 天 93% 的书上过榜，整个书目都在卖，不靠单本。
- 定价中位 $16.99，比主类目「Civil Service」的中位价低 43%。
- 近 30 天新上 14 本，其中 11 本冲进了畅销榜。
L.K. Duncan 排名最好的书
-
Police Sergeant Oral Board Workbook: The COMMAND Method: Scenario-Based Interview Preparation, Supervisory Decision-Making, and Structured Response ... ... Candidates (COMMAND Method Series Book 1)
作者 L.K. Duncan
- 价格$0
- 评分4.9
- 评论15
- 出版2026-09
-
Police Officer Oral Board Workbook: The COMMAND Method: Interview Preparation, Scenario-Based Questions, Sample Answers, and Strategies for Law Enforcement Applicants (COMMAND Method Series Book 3)
作者 L.K. Duncan
- 价格$9.99
- 评分4.6
- 评论15
-
Police Lieutenant Oral Board Workbook: The COMMAND Method: Scenario-Based Interview Preparation, Organizational Leadership, and Command Decision-Making ... Candidates (COMMAND Method Series Book 2)
作者 L.K. Duncan
- 价格$9.99
- 评分4.7
- 评论15
-
Police Sergeant Oral Board Workbook: The COMMAND Method: Scenario-Based Interview Preparation, Supervisory Decision-Making, and Structured Response ... Candidates (COMMAND Method Series)
作者 L.K. Duncan
- 价格$18.62
- 评分4.9
- 评论15
-
Police Officer Oral Board Workbook: The COMMAND Method: Interview Preparation, Scenario-Based Questions, Sample Answers, and Strategies for Law Enforcement Applicants (COMMAND Method Series)
作者 L.K. Duncan
- 价格$18.45
- 评分4.6
- 评论15
-
Police Academy Survival Guide: Prepare for Day One, Survive the Academy, and Graduate Ready for the Street (COMMAND Method Series)
作者 L.K. Duncan
- 价格$16.99
- 评分4.8
- 评论15
-
Police Supervision: The Complete Guide for Police Sergeants, First-Line Supervisors, and Promotional Exam Preparation (COMMAND Method Series)
作者 L.K. Duncan
- 价格$49.99
- 评分4.8
- 评论17
-
Police Lieutenant Oral Board Workbook: The COMMAND Method: Scenario-Based Interview Preparation, Organizational Leadership, and Command ... Candidates (COMMAND Method Series)
作者 L.K. Duncan
- 价格$19.52
- 评分4.7
- 评论15
-
POLICE SUPERVISION: The Complete Guide for Police Sergeants, First-Line Supervisors, and Promotional Exam Preparation (COMMAND Method Series)
作者 L.K. Duncan
- 价格$12.99
- 评分4.8
- 评论17
-
Police Sergeant Promotional Exam Study Guide: The Seven-Stage System: A Practical System for Mastering the Written Exam and Preparing for Promotion (COMMAND Method Series)
作者 L.K. Duncan
- 价格$9.99
- 评分4.5
- 评论13
主要上榜类目
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。