pdfbooks.co.uk/electrical-installations
The Website sells UK PDF downloadable books on Electrical Installations.
For example:
Code of Practice Electric Vehicle Charging Equipment Installation 4th Edition. Includes Amendment 1(2020) to BS 7671:2018
Guidance Note 3: Inspection & Testing the 18th Edition of the IET Wiring Regulations BS 7671:2018
18th Edition Wiring Regulations Electrical Regulations 2018
On-Site Guide IET Wiring Regulations 18th Edition BS 7671:2018
... and many other books.