Evan Hargreaves writes practical troubleshooting and learning guides for Mercer Lane Press. His books cover first-time residential pool troubleshooting, beginner visual telescope observing, and symptom-to-cause troubleshooting for deep-sky astrophotography systems.
A practical U.S.-focused troubleshooting guide for first-time residential pool owners, built around a symptom-first OBSERVE → TEST → ISOLATE → ACT → VERIFY method for water, circulation, filtration, equipment, recurring problems, seasonal transitions, and knowing when professional help is the correct next step.
A practical twenty-session beginner program for learning visual telescope observing: set up and control the instrument, find and confirm targets, build observing technique, read conditions, troubleshoot problems, and plan independent sessions.
A symptom-to-cause diagnostic manual for deep-sky imagers who need to separate guiding, tracking, focus, plate-solving, calibration, communication, optical, and automation failures using controlled tests instead of speculative setting changes.
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