I am a complete novice in software testing. I want to learn more about black-box/functional testing in general. Which courses(free or paid Text/video courses) could i use to learn better to write test cases, create test scenarios, learn writing clear defects , negative testing...etc.
Although I have voted this to be closed, because this is a primarily opinion based question- best is a subjective term which is dependent on a person's perspective of best.
Instead of Testing courses, I can give you a good list of reading materials though- because this website is a store house of these kinda things.
Another point : Before you post, please research a bit, because this question has been asked N times, with the same answer.