Mike Holt's Illustrated Guide to Understanding the National Electrical Code WORKBOOK to accompany the Illustrated Guides, based on the 2020 NEC.
A printed copy of the Answer Key for all the book's questions is Included. One could print the answer keys to Mike Holt books back when I first bought this, but that is no longer the case.
The original QR code sticker that came on the book's shrink wrapping is also on the book. However, based on the age of the book, I cannot guarantee that the link will work, sorry.
Book is in excellent condition and has no writing. I am selling several other Mike Holt books.