The Art & Skill of Radio-Telegraphy
- A freware book on learning morse-code. The Art & Skill of Radio-Telegraphy Third Revised Edition by William G. Pierpont N0HFF, online version available in multiple languages
- A tribute to morse telegraphy, resource for wire and wireless telegraph key collectors and historians by Neal McEwen, K5RW
The Morse Telegraph Club
- International non-profit organization dedicated to the perpetuation of the knowledge and traditions of telegraphy and American Morse Code.
The KK4DW Telegraph Key Collection
- An informative description of various telegraph keys with large, sharp, digital images to study. Constantly added to and updated with the latest information.
The Art & Skill of Radio Telegraphy
- For those who are interested in telegraphy, for those who would like to learn it,
for those who love it, and for those who want to improve their skills in it
How to build a simple wireless telegraph set
- The simplest wireless telegraph set consists of a means of generating and controlling a spark which sends out radio waves into the air, and a receiver or detector to detect the radio waves.