Do you know what is this ECG?
No worries, there’s a mnemonic for this.
Do you notice the red markings “W” on V1 and “M” on V6? Those are specific for LBBB since in V1 it tends to be in W pattern, while in V6 it tends to be M pattern.
So the mnemonic is: WiLLiaM MaRRoW
Kinda easy, right?