Commission a photographer that specializes in shooting children's photos. Children require a special type of direction and patience to get the perfect set of shots. Where you can simply instruct an adult model the look you want to achieve, a child must be directed on the facial expressions to make and the structure of the poses you desire.
Ask for a variety of shots. A children's modeling portfolio should convey the child's range in terms of types of looks he can communicate. From department-store style pictures that show off the clothing the child is wearing to facial shots that show off the child's best features. The more range you can show through the photos, the more likely it is that a potential casting agent will see a look that might work for his project.
Include a sheet that details physical characteristics in the portfolio. In addition to seeing the photos, an agent will want to know what the child's physical specifications are, from clothing sizes to height, eye color, natural hair color and any stand-out characteristics, such as birthmarks or the presence of freckles. This kind of information aids in the casting process.
Insert the child's resume into the portfolio. This lists previous modeling work as well as any special talents the child may have. This can ensure that your child stands out among other child models when casting for a specific project. Choose a simple and concise resume format, without too many graphic elements and other bells and whistles to ensure the focus stays on the work your child has done in the modeling industry to date.