Many children are able to grasp a crayon and shove it around on a piece of paper when they're about 12 or 13 months old. Their writing and drawing skills improve in tiny incremental steps throughout the toddler years until they're able to draw recognizable pictures and, eventually, put a few letters down on paper. 12 to 18 months Over the last several months of his first year, your child's fine motor skills improved steadily. Now he's physically ready to grab hold of a crayon and start experimenting. If yours takes longer, that's fine, too.
Children develop at different rates, some faster than others.
By around 16 months, your little one will probably be a scribbling pro, creating a gallery's worth of drawings for the refrigerator. Beware, this is prime time for crayon scribbles on the wall. And he's probably starting to spend longer on each individual drawing now, covering more of the paper rather than making a single swirl. Draw a single line and he can easily imitate it, though it may not be very straight. A drawing may look to you like a solid mass of green ink, but ask him and he'll tell you it's a snake in the jungle.