which tools are used for it?
Pencils, brushes, or paper, typically Bristol board, and waterproof ink etc
Cartoonist
 a variety of pencils, brushes, or paper, typically Bristol board, and waterproof ink
what was alex raymond's profession? He was a cartoonist. what does this term means? It is a visual artist who specializes in drawing cartoons or comics.
wiki:13506158
Cartoonist [SEP] Tools
Artists use a variety of pencils, brushes, or paper, typically Bristol board, and waterproof ink. When inking, many artists preferred to use a Winsor & Newton Series 7, #3 brush as the main tool, which could be used in conjunction with other brushes, dip pens, a fountain pen, and/or a variety of technical pens or markers. Mechanical tints can be employed to add grey tone to an image. An artist might paint with acrylics, gouache, poster paints, or watercolors. Color can also be achieved through crayons, pastels or colored pencils. Eraser, rulers, templates, set squares and a T-square assist in creating lines and shapes.