This is a lot of 2 vintage Whitman Little Big books.
The 248-page books published by Western Publishing Company Inc. are:
Disney's Mickey Mouse Mystery At Disneyland was published in 1975.
Disney's Donald Duck Luck of the Ducks, published in 1969
The books measure about 4.75" tall, 3.75" wide, and 0.75" thick.
These books are in pre-owned condition with bending of the covers and light wear, and Mickey Mouse has a bent page.