The "Let's Sing Together!" book with CD is a first edition signed by Yarrow Mint. Published by Sterling in 2009, this hardcover book features illustrations by Terry Widener and includes a CD-ROM. With a topic focused on music, this book has 48 pages and measures 10 inches in length, height, and 3 inches in width. The item weighs 25 ounces and is a must-have for music lovers and fans of Yarrow Mint.