With technology, I have a real problem understanding instructions that come with a product.
Nowadays however, many firms do not have instruction and you have to look it up online.
I find that doing this and search for one specific problem is far easier and it seems to be explained better than when it is in a printed form!
e.g. I bought a new camera with a thick book of instructions, and I actually almost freak out when I see these large books -the other is my new car -the book is so thick it would take weeks to read, so I don't.
Occasionally if I am assembling furniture I will look as they have drawings.