"Bento Power: Brilliantly Balanced Lunchbox Recipes" by Sara Kiyo Popowa is a beautifully illustrated cookbook focusing on lunchbox recipes. Published in 2018 by Kyle Books, this non-fiction book is part of the Shiso Delicious series, making it a valuable resource for adults interested in cooking. With 192 pages of English language content, readers can enjoy a collection of recipes that are not only delicious but also visually appealing, thanks to the talented illustrator Sara Kiyo Popowa. This book is a must-have for those looking to create vibrant and nutritious meals for their lunchboxes.