Before you buy yourself a Sewing machine, you should know how it works and what are its components. You must have seen mom or grandmother stitching a button or a cloth, you must be already know how stitching works.
The main parts of Sewing machine are Bobbin and Bobbin cover, Needle Plate, Reverse Button and Tension Control.
According to Wikipedia:
Beneath the needle (as the GIF shows at a very slowed down speed) a hook rotates, capturing the thread from above and looping it around another thread, this one reeling from the bobbin below. The two threads interlock around the layers of fabric, binding them to one another.
This is the basics of stitching and it remains same for almost all Sewing machines.
If you want to do Leather Repair or sew a leather. You can take help form normal sewing machine.
However, it is not easy to select best sewing machines based on your needs as there are a lot of models available from beginners to professional. I have created this blog to help you find the best Sewing machines based on your needs.
In the past, Sewing machines were operated by foot but recently it works in fully automatic and computerized way.
Top companies like Singer, Brother have created advanced Sewing machines which can give you a complete different experience. They are smaller in size, compact and can save a lot of time for you.