These days, there are many excellent video tutorials on YouTube. Many are of high quality and very professional. I find them particularly helpful, because it is possible to re-wind the video and watch particular portions repeatedly.
For example, when I wanted to learn how to knit two socks on one circular needle, I watched this tutorial by Staci of Very Pink Knits (here is her YouTube channel). I particularly like the format of Staci’s videos because much is filmed from above her hands, so that you can easily see what she is doing. The video is oriented so that it looks like it would if you were holding the needles. Further, each video is paired with a simple pattern, which allows you to follow along while watching the video.
While learning to knit two socks on one circular needle, I found one step to be particularly confusing. I must have re-watched that step about 15-times, before I understood it. Eventually I got it and now on my way to making many pairs of lovely hand knit socks. No second sock syndrome here!
This morning, my daughter called and asked me how to sew a lined sleeve vent. I thought “why re-invent the wheel?” and sent her links to three excellent tutorials, which you can watch below. I hope that you find the helpful too.
Here is Diane Deziel, with her video tutorial on tailoring a sleeve vent with lining.
Here are two videos by FashionSewingBlogTV.