Charis StudyHall 的 KDP 数据
截至 2026 年 11 月 6 日，Charis StudyHall 在 Amazon 有 21 本书，近 30 天有 16 本上过榜，最好排名 #12，主要在水资源与土地利用、Waste Management、Water Quality & Treatment。
21Amazon 上的书
16近 30 天上榜书
4.6平均评分
| 价格中位数 | $22.99 |
|---|---|
| 价格区间（中间 50%） | $9.99 – $27.72 |
| 评论中位数 | 1 |
| 评论总数 | 21 |
| 近 30 天新书 | 0 |
| 近 30 天突围新书 | 0 |
数据解读
- 近 30 天 76% 的书上过榜，整个书目都在卖，不靠单本。
Charis StudyHall 排名最好的书
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Illinois CDL Study Guide 2025-2026: Your Comprehensive State Commercial Driver’s License Exam Prep with Pre-Trip Inspection Scripts, Mnemonics, 1000+ Practice Test Questions and Answers Explanations
作者 Charis StudyHall
- 价格$7.59
- 评论-
-
Roofer Exam Study Guide: Your residential and commercial roofing Prep with safety review, simplified estimating, Repairs, 500+ practice questions with answer explanations
作者 Charis StudyHall
- 价格$23.99
- 评论-
-
Texas CDL Study Guide 2025-2026: Your Simple Prep to Ace the TX Commercial Driver's License Exam with Full DMV Rules, Tips, and Safety Tips Including 500+ Practice Questions and Explanations
作者 Charis StudyHall
- 价格$8.99
- 评分5.0
- 评论3
-
California Wastewater Grade 2 Exam Study Guide: Your Unofficial Prep for the SWRCB Treatment Plant Operator with Essential Math Formulas, 400+ Practice Questions and Answers Explanations
作者 Charis StudyHall
- 价格$34.59
- 评论-
-
California Wastewater Grade 3 and 4 Exam Study Guide: Your Simplified Treatment Plant Operator Prep with Advanced Math Breakdowns, Scenarios, and 600+ Practice Questions with Answer Explanations
作者 Charis StudyHall
- 价格$34.59
- 评分4.0
- 评论1
- 出版2026-05
-
DANB RHS Study Guide 2026-2027: Your Simplified Radiation Health and Safety Exam Prep with 500+ Practice Questions, Answer Rationale, and Strategies to Ace Infection Control, Angulation, and Exposure
作者 Charis StudyHall
- 价格$28.89
- 评论-
-
Florida PERT Study Guide 2026-2027: Your Simplified Postsecondary Education Readiness Test Prep to Conquer math, reading, writing with 5 Full-Length Practice Exams and Answer Explanations
作者 Charis StudyHall
- 价格$9.99
- 评论-
-
High Pressure Boilers Operator Study Guide 2026-2027: Your Simplified Exam Prep to Master Water Chemistry, Steam Calculations, and ASME Codes, with 600+ Practice Questions and Answer Rationale
作者 Charis StudyHall
- 价格$9.99
- 评分5.0
- 评论1
-
California Wastewater Grade 3 and 4 Exam Study Guide: Your Simplified Treatment Plant Operator Prep with Advanced Math Breakdowns, Scenarios, and 600+ Practice Questions with Answer Explanations
作者 Charis StudyHall
- 价格$9.99
- 评分4.0
- 评论1
-
Roofer Exam Study Guide: Your residential and commercial roofing Prep with safety review, simplified estimating, Repairs, 500+ practice questions with answer explanations
作者 Charis StudyHall
- 价格$9.99
- 评论-
主要上榜类目
常见问题
Charis StudyHall 在 Amazon 有多少本书？
KDPTop 跟踪到 21 本，近 30 天有 16 本上过 Amazon 榜单。
Charis StudyHall 主要写哪些类目？
上榜最多的类目是水资源与土地利用、Waste Management、Water Quality & Treatment。
Charis StudyHall 的书一般卖多少钱？
定价中位数 $22.99，一半的书在 $9.99–$27.72 之间。
Charis StudyHall 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。