You can attend a class and bring nothing, drawing boards and basic materials are provided. But as you become more experienced, you will want to work with your own personal kit. And some items are always in short supply, rubbers and sharpeners in particular.
Drawing is not only one of the most creative activities we can indulge in, luckily for us, it is also one of the least expensive. The following are a short list of useful items.
Paper, Pencil (or charcoal), Rubber, Sharpener.