Photoshop tutorial

On Friday 30th of January, our class had a photoshop tutorial from the ICT technician Mark. He explained all the different things we could use to edit our pictures. He also showed us how to have different layers of the magazine we are designing, so if ever you make a mistake, you do not have to start from the beginning, you can just go on to the original layer of the work.He also explained that when cutting a picture out from another picture, and putting it into the original, you have to use the tool called lasoo, but also, you have to heighten the percentage that the picture is feathered, because if not, then the edges will be really rough.
I feel that i learnt a lot from this lesson but just watching and listening isnt really enough for me therefore i will have a go myself with the proggramme therefore i can see how to use it how in a way that really suits me.