This redstone tutorial contains 16 redstone contraptions for rookies and for pros!
it contains:
2 things about the lanth of redstone
2 logic gates (an AND gate and a NOT gate)
3 piston lessons
3 rail things
2 things you can do with hoppers
A trapped chest lesson
A memory gate with buttons
And last but not least a BUD switch i made (only works with redstone blocks)

Additional Notes

I plan to add 15 more contraptions in the future