recorded lectures and videos

https://www.youtube.com/watch?v=nBN6UmupOp8&t=28s - Image registration in QGIS

https://www.youtube.com/watch?v=1V_Q6OWfxtE&t=4s

https://www.youtube.com/watch?v=1V_Q6OWfxtE - Digitisation and Creation of polygon features in QGIS

https://youtu.be/8qXi6wxhOp8 - Open source operating system

https://youtu.be/uKa3BXogSNc- Add and remove layers in QGIS

https://youtu.be/QxuCQ_GPMiU Map to map registration in QGIS

Snapping in QGIS by Daljit Singh - https://youtu.be/r_7qej-_b90

Creation of line fieatures in QGIS by Daljit Singh - https://youtu.be/Jhg0FiCGuFw