Mike Holt first impressions (review 6)

What Mike Holt actually is

Mike Holt Enterprises has been around since the 1970s. Training videos, illustrated code books, exam prep, continuing ed. The illustrated NEC is the flagship, full color graphics next to the code text with Mike's commentary baked in. Most journeymen have seen one on a foreman's desk at some point.

I picked up the 2023 Understanding the NEC Volume 1 and the digital subscription to compare against what I use daily on a job. Volume 1 covers articles 90 through 480, so general installation, branch circuits, feeders, services, grounding and bonding. Volume 2 picks up the special occupancies and equipment.

This is a review from the field, not a paid plug. I run service work and small commercial, mostly resi remodels with the occasional panel change. Take that as the bias.

The illustrated book, the good

The graphics are the whole point and they earn the price. When you are trying to figure out a bonding jumper around a water meter under 250.68(C)(1), seeing it drawn next to the code language clicks faster than reading the NEC cold. Same with service entrance configurations, equipotential bonding around pools per 680.26, GFCI receptacle locations under 210.8(A) and (B).

Mike's commentary is plain spoken. He calls out the common mistakes, points to what changed cycle to cycle, and tells you when something is a code minimum versus best practice. That distinction matters when you are pricing a job.

Sections I marked up the most so far:

• Article 250 grounding and bonding, the whole thing
• 210.52 receptacle outlet requirements in dwellings
• 240.21(B) feeder tap rules
• 314.16 box fill calculations
• 408.3 panelboard wire bending space

The illustrated book, the not so good

It is heavy. Genuinely heavy. The Volume 1 book lives in my truck because I am not carrying it up a ladder. If I am in an attic chasing a junction box question, the book is not coming with me. That is a real workflow problem when 80% of code questions hit you mid task.

Search is also a paper book problem. The index is decent but I still flip pages, and on a 2023 cycle book I am cross referencing a 2020 jurisdiction half the time. Mike publishes per cycle, but the AHJ behind you is on whatever they adopted.

Tip from a service truck: keep the illustrated book in the cab for breaks and quoting, keep something searchable on your phone for the actual install. Two different tools, two different jobs.

The digital and video side

The online courses and videos are where Mike Holt really separates from a regular code book. Exam prep for journeyman and master is solid, the practice questions actually mirror the test format in most states. If you are studying for a license, this is one of the better options on the market.

The digital library lets you search across his materials, which is faster than the book. But it is searching his commentary and graphics, not the live code text in a way I can pull a citation from quickly. If a homeowner or GC asks me where it says that, I want to point at the article number, not at a commentary paragraph.

The video subscription is a strong value if you are a learner who absorbs better watching than reading. For a 20 year electrician who already knows where article 250 lives, the videos are slower than just looking it up.

Where it fits, where it does not

Mike Holt is built for studying, training apprentices, and prepping for exams. It is excellent at that. As a daily reference on the job, it is a step behind a fast searchable tool because of the form factor and because the commentary, while great, is not always what you need at 2pm on a Friday when you are trying to close out a rough in.

Where I reach for it:

1. End of day when I am quoting a job and want to double check a calculation
2. Training a helper, the graphics do the explaining for me
3. Studying for the master exam this fall
4. Cycle change, to see what moved between 2020 and 2023

Where I do not:

• Mid install code questions
• Anything where I need a citation in 10 seconds in front of an inspector
• Working off a ladder, in an attic, in a crawlspace

Honest verdict

Mike Holt earned his reputation. The illustrated NEC is the best teaching version of the code book I have used, and the exam prep is worth the money if you are licensing up. If you are an apprentice, journeyman studying for master, or a trainer, buy it.

If you are a working electrician looking for something to pull out one handed on a roof, that is a different tool. The book is a teacher. A phone reference is a coworker who knows where everything lives. You probably want both, used for what each does well.

Rule of thumb: if you would sit down at a table to use it, Mike Holt wins. If you would use it standing on a ladder, you need something else.

Next review in this series will get into the searchable digital tools side by side, including how fast each one gets you to a clean 210.8 or 250.122 answer with the cycle your AHJ is actually on.