Quote from ♪♫ in my ♥
Two books by Tomas Garcia MD A book by Malcolom Thaler I don't care for Dale Dubin's book And the "Incredibly Easy" books sux.
The "Incredibly Easy" books are great, I think, but the EKG one could be better.
I personally like ECG Workout by Jane Huff RN. Very detailed but understandable and they give you A LOT of practice strips. For 12 leads, here is a free presentation from the AACN on recognizing and localizing MIs that I found to be very helpful: 12 Lead ECG Bootcamp Series: Using Case Studies To Interpret Ischemia, Injury & Infarction.