Bob Marley's 1977 song "Jamming" isn't just a catchy tune — it's a celebration of togetherness, community, peace and mutual respect.MarleyZiggy ap1 c.jpg (3912x4890, AR: 0.8)The iconic song is also the inspiration behind the latest children's book by Bob Marley's eldest son, Ziggy Marley.The book is called "Pajammin': A Reggae Pajama Party for the Whole Family."Ziggy Marley is a nine-time Grammy winner, Emmy winner, musician, humanitarian and author. He'll also headline the inaugural KPBS San Diego Book Festival on Saturday.He joined Midday Edition to discuss the process behind writing the book and his love for family tradition and playfulness.Guest: Ziggy Marley, award-winning musician and author of "Pajammin: A Reggage Pajama Party for the Whole Family"