A Relatively Painless Guide to Special RelativitySerious and accessiblefinally the special relativity course book that both physics majors and lifelong learners deserve. Special relativity challenges ones physical intuition of space, time, matter, and energy in a way that few other topics in physics do. Yet the subject is often treated as an extra in undergraduate coursessomething to be picked up in a few random lectures and presented as a combination of geometric and logical puzzles (seemingly with