Mike Holt reviews from electricians (review 5)

What Mike Holt actually is

Mike Holt Enterprises is a training company. Books, video courses, exam prep, continuing education. The "Understanding the NEC" series is the flagship, and most journeymen have either owned a copy or borrowed one off the truck. It is not a code reference app. It is a study system built around the printed NEC.

That distinction matters when guys compare it to a phone tool. Holt teaches you why 250.122 sizes the EGC the way it does. He does not pull up 250.122 while you are standing on a ladder with a pair of strippers in your teeth.

Where the Holt material earns its money

For exam prep, it is hard to beat. The graphics are clean, the practice questions track the way states actually write the journeyman and master tests, and the explanations connect articles together instead of treating each one in isolation. If you are sitting for a license, the workbook plus the video set is still the standard answer most shops give apprentices.

The continuing education catalog is also solid. Code change classes every cycle, grounding and bonding deep dives, and the calculations course that finally makes Article 220 click for guys who have been faking load calcs for a decade.

• Strong on theory and the "why" behind articles like 250, 230, and 310
• Code change videos every three years, tracking the new cycle
• Practice exams that mirror real state test formats
• Printed workbooks that hold up in a gang box

Tip from a 22 year IBEW hand: buy the Holt grounding and bonding book once, read it twice, and you will stop arguing about isolated grounds on the job for the rest of your career.

Where it falls short on the job

Holt is a classroom product. On a service call you do not want a 400 page workbook, you want the answer to "what is the minimum burial depth for a 120V branch circuit under a driveway" in under ten seconds. Table 300.5 says 18 inches for the driveway condition, and you should not have to flip through three chapters to confirm it.

The Mike Holt app exists, but most electricians who have tried it describe it the same way: it is a delivery vehicle for the courses, not a working code lookup. Search is limited, offline behavior is inconsistent, and the interface assumes you are sitting at a desk, not crouched in an attic at 104 degrees.

• No fast article jump by number (try typing "210.8" and see what happens)
• Calculators are tied to specific course content, not standalone
• Bookmarks and notes do not sync the way a modern app should
• Pricing is per course, not flat access to the code

What working electricians actually say

Pull up any electrical forum, Mike Holt's own forum included, and the pattern is consistent. Guys love the books for studying. Guys are lukewarm on the app. The complaint is almost never about accuracy, Holt's team is meticulous, it is about workflow on a real job site.

The other recurring note: price. A full course bundle can run several hundred dollars. For a first year apprentice or a residential service tech who just needs to confirm GFCI requirements under NEC 210.8(A) and AFCI requirements under 210.12, that is a lot of money for material aimed at exam takers.

1. "Best book I ever bought for the master's test." Common.
2. "I use it at home, not on the truck." Also common.
3. "The app is fine, but I keep my code book in the van anyway." Most common.

Honest comparison from the field

If you are studying for a license, buy the Holt material. Full stop. Nothing else in the industry teaches the code with the same clarity, and the investment pays for itself the day you pass the exam and your hourly jumps.

If you are a licensed electrician trying to settle a code question on a live job, Holt is the wrong tool. You need a fast lookup that handles 210.8, 250.66, 310.16, 408.36, and Table 300.5 without making you watch a 12 minute video first. That is not a knock on Mike Holt, it is just a different product category.

Field rule: study tools live in the truck cab, reference tools live on your phone. Do not ask either one to do the other job.

How Ask BONBON fits next to it

Ask BONBON is built for the second use case. Type a plain question, "do I need GFCI on a kitchen island receptacle in a finished basement," and get the article, the exact subsection, and the conditions that apply. NEC 210.8(A)(6) and (A)(7), with the 2023 changes flagged. No course to buy, no video to scrub through.

The honest take from working hands is this: keep your Holt books for the test and the deep theory, keep your code book in the van for the AHJ, and keep a real code app on your phone for the 30 questions a week that come up between rough and trim. Different tools, different jobs, no need to pick a fight between them.