Leo the Late Bloomer by Robert Kraus, is a wonderful book to encourage your LD child. It's about Leo the lion cub who has difficulty writing and reading among other things. His father is worried but his mother reassures him that he will "bloom" in his own time, which indeed he does. It is filled with colorful illustrations to capture your child's eye.
Your child will find that he, like Leo, will "bloom" and learn to do what others do when he is ready. Such an encouraging book!