Feeding reading. 1 box = 1 free book. Best of mad libs. Delicious jumbo cereal pieces! Jumbo size. Perfect for snacking! It's jumbo! It's for snacking! It's jumbo snax! Feeding Reading. 1 box = 1 free book. Buy any participating Kellogg's product between 5/24/2021 and 9/30/2021. Take a pic of your receipt(s) with qualifying purchases and go to feedingreading.com to register and upload. Each receipt must be submitted within 14 days of purchase by 10/14/2021. Get credit to redeem for a book of your choice to keep or donate. Credits must be redeemed by 10/31/2021. Limit of 6 books per participant.