Zak has ADHD is a reassuring story for 4 to 7 year-olds about Zak the Zebra. Poor Zak - he's naughty, rude and unpopular, but all he really wants is to be like the other children. Doctor Spot finds that Zak has Attention Deficit Hyperactivity Disorder, or ADHD. Soon Zak is winning gold stars for good behaviour - and making a new friend! // Doctor Spot Case Books is a series of colourful stories designed to help children and understand and cope with common ailments and conditions. Each title also has special parents' pages at the back providing medically vetted information on recognizing and easing symptoms and seeking medical help.