Amazon currently has a lot of the older LEGO books on heavy discounts that you may want to add to your library. All of the books listed also include exclusive minifigures as well. Some of the items may even arrive before Christmas if you order today.

LEGO Minifigure Year by Year: A Visual History – $17.98 with $3.17 coupon applied – 55% off

LEGO Batman: Visual Dictionary – $11.40 with $2.01 coupon applied – 48% off

LEGO DC Comics Super Heroes Character Encyclopedia – $12.99 – 32% off

LEGO Minifigure A Visual History New Edition – $27.99 – 30% off

LEGO DC Super Heroes Visual Dictionary – $15.39 – 30% off