This is a perfect first project, and so so easy. All you need is a pair of scissors, some tape, and a box that would be roughly 30cm by 20 cm by 20cm (12″ x 8″ x 8″). I used a wine box.
>tape up flaps (these will form the backs of your mini shelving unit)
>place box so the taped up flaps are now on the right and left, in each of your hands.
>cut the box in half.
>place one half on top of the other.