JD R. Lawson 的 KDP 数据
JD R. Lawson 在 Amazon 有 56 本书，近 30 天有 37 本上过榜，最好排名 #3，主要在Heating, Ventilation & Air Conditioning、暖通空调、Machinery。
56Amazon 上的书
37近 30 天上榜书
4.5平均评分
| 价格中位数 | $14.99 |
|---|---|
| 价格区间（中间 50%） | $12.99 – $18.74 |
| 评论中位数 | 2 |
| 评论总数 | 39 |
| 近 30 天新书 | 21 |
| 近 30 天突围新书 | 11 |
数据解读
- 近 30 天 66% 的书上过榜，整个书目都在卖，不靠单本。
- 定价中位 $14.99，比主类目「Heating, Ventilation & Air Conditioning」的中位价低 52%。
- 近 30 天新上 21 本，其中 11 本冲进了畅销榜。
JD R. Lawson 排名最好的书
-
Why HVAC Systems Fail : The Field Technician's Root-Cause Guide to Diagnosing Compressors, TXVs, Condensers, Evaporators & Blower Motors (Forensic Technician Book 1)
作者 JD R. Lawson
- 价格$12.99
- 评分5.0
- 评论1
- 出版2026-06
-
A2L Refrigerants: The Field Guide for HVAC Professionals: R-454B, R-32 & R-1234yf — Safe Handling, Charging Procedures, Code Compliance, and Contractor ... Protection (HVAC Field Mastery Series)
作者 JD R. Lawson
- 价格$12.99
- 评论-
-
The HVAC Business Manual: How to Stop Working for Someone Else, Master Pricing, Build Service Agreements & Start Running Your Own HVAC Company (HVAC Field Mastery Series)
作者 JD R. Lawson
- 价格$12.99
- 评分3.8
- 评论3
-
HVAC Electrical Troubleshooting Field Guide: Step-by-Step Diagnostics for Wiring Diagrams, 24V Control CKT, Contactors, ECM Motors, VFD Drives, Communicating Systems, & Heat Pump Electrical Controls
作者 JD R. Lawson
- 价格$14.99
- 评论-
-
HVAC Electrical Troubleshooting Field Guide: Step-by-Step Diagnostics for Wiring Diagrams, 24V Control CKT, Contactors, ECM Motors, VFD Drives, ... Electrical Controls (Forensic Technician)
作者 JD R. Lawson
- 价格$26.95
- 评论-
-
HVAC Electrical Troubleshooting Field Guide: Step-by-Step Diagnostics for Wiring Diagrams, 24V Control CKT, Contactors, ECM Motors, VFD Drives, ... ... Electrical Controls (Forensic Technician)
作者 JD R. Lawson
- 价格$12.99
- 评论-
-
HVAC Troubleshooting for the Modern Technician : THE PRACTICAL FIELDGUIDE TO MASTER ELECTRICAL DIAGNOSTICS, AIRFLOW, A2L REFRIGERANTS, HEAT PUMPS, & SMART ... IN THE 2026 ERA (Forensic Technician)
作者 JD R. Lawson
- 价格$12.99
- 评分5.0
- 评论8
-
2026 Commercial Refrigeration Field Guide: Troubleshooting Walk-Ins, Supermarket Racks, EPA Leak Rules and CO2 Transcritical Systems — A Crossover Guide ... Technicians (HVAC Field Mastery Series)
作者 JD R. Lawson
- 价格$12.99
- 评论-
-
Commercial VRF Design & Commissioning Field Guide: Piping Limits, Combination Ratio, Branch Selection, and Startup Proce dures for Variable Refrigerant Flow Systems
作者 JD R. Lawson
- 价格$24.78
- 评论-
-
AI Data Center Commissioning Field Guide: Liquid-Cooled Load Testing, FAT and SAT, Functional Performance Testing, and Integrated Systems Testing from OPR to Turnover (HVAC Field Mastery Series)
作者 JD R. Lawson
- 价格$12.99
- 评论-
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。