Book about technical design

Bagstor

I would like to raise their skills in technical design. Design of home appliances, machinery, and in general everything that is connected with a convenient and development of the concept. It is the understanding of these principles. What books can advise in this area? According to the materials, design principles, and so on. What would be the thing that creates a user-friendly. Sorry for bad English.:)
Also tutorials and video may to post.