Information for buying railway signalling books

[saluguvenkat]

I have gone thorugh the links, really help full .
Thank you for sharing the usefull links.

What Timing!
I've just received an IRSE Bulletin email advertising the IRSE Testbooks (details below). I've also found Stanley Hall's ABC Modern Signalling Handbook helpful; it's much smaller.
Caveat - all these focus on British Signalling, I have no idea where to start looking for books on Indian Signalling.