Amazon offers the Pocket Constitution of the United States Paperback Book for $1. (Barnes & Noble has it for the same price via pickup.) Plus, Prime members receive free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $4.98.) That's the lowest price we could find by $1. This 52-page book includes the full text of the US Constitution and measures 6.5" x 3.3" x 0.1".
Walmart discounts a selection of Mercer Mayer's Little Critter Paperback Books, as listed below. (Amazon is currently price matching many, as noted below.) Opt for in-store pickup to avoid the $4.97 shipping fee. That's tied with our mention from two weeks ago as the lowest prices we've seen for these books. The deals: