I just finished reading this book, which came out this year. Lightning Beneath the Sea: The Race to Wire the World and the Dawn of the Information Age by James

I just finished reading this book, which came out this year. Lightning Beneath the Sea: The Race to Wire the World and the Dawn of the Information Age by James M. Tabor (Author) About this telegraph cable, and all of the different attempts to lay it on the sea floor. I also recommend The Victorian Internet by Tom Standage (1998) if you want to learn more about telegraphs.