The Edmonton Public Library has quite a few books that are relevant to parenting children with ADD. You can find them online in a special list at EPL, or download a Word document to your computer from this site.
Books that are aimed at children or teenagers are in another list, or can be downloaded as a Word document.
Books for adults are in this list.
Edmonton Public Library has many books available for parents and teachers. You can access the list, which includes websites, here. Books and websites about anxiety, written for adults, are in a another list.