New 'Light Blue' Color Added to 'Tsundoku Holder' Reading Accessory

Crossmedia Publishing Co., Ltd. (HQ: Sendagaya, Shibuya, Tokyo; CEO: Koichiro Kobayakawa), a publisher specializing in business and practical books, will release the 'Tsundoku Holder Light Blue,' a limited edition color for summer 2026, on June 19, 2026. Pre-orders will begin on May 28, 2026. Since its general release in late September 2025, the 'Tsundoku Holder' became a hot topic on social media. The initial 3,000 units sold out in November, followed by additional production runs of 4,000 in December and 3,000 in February 2026, surpassing 10,000 total units shipped in less than six months. In response to requests for new colors, light blue will be added to the existing black and greige lineup. The 'Tsundoku Holder' was developed to present 'tsundoku' (the habit of buying books and not reading them) not as a negative, but as a 'positive existence that visualizes future learning and enjoyment.' It is recommended for busy business professionals and those looking to build a reading habit.