Find software that is easy to use . I actually rarely use any software in my designs I find most of it difficult to change things easily and could be I ma just old school and love pencil and paper for my work along with mood boards.If you want to know what software they use call them and ask.

Hi Élisabeth, you might want to check out Google SketchUp. It’s probably the easiest 3d software to use. You can download a 30 day trial for free. There are tutorials you can find on YouTube or LinkedIn Learning, although the latter may cost some money. And no, you don’t need to know how to draw by hand to draw by mouse.