Ingeneral,we use to give least importance on our electrical systems.
No much expertises on this but let’s explore few of the below titles on EARTHING.

1.Types of Earthing.
2.Structure of Earthing.
3.Design of Earthing.
4.Application of Earthing.(Industry wide like Generation(Thermal,Hydro,Atomic,Fossil fuel plants,Transmission,Petroleum,process industries & etc)
5.Compliance requirements.
6.Testing& commissioning.
7.Operation& Maintenance.
8.Life cycle of earth pits.
9.Refurbishment earthing.
10.Different Nature of issues experienced by all.

Disclaimer: As obtained from the Internet