Recommendations for learning Apple Scripting (Online, HowTo-s, Video, etc.)

At work I know enough to get me by but that's mostly by adjusting already pre-made scripts or using others from online. For work I'd like to better myself by doing a course which work will pay for but for me I do better by visually following along than just reading a book. Reading something doesn't tend to sink in for me.

Can anyone recommend an online site that teaches Apple Scripting that they have learned from?

Thank you