Vintage R. L. Stine Goosebumps Books Scholastic Chapter 90s Go Eat Worms Mummy 

The Girl who cried monster -1996

How I got my Shrunken Head - 1996

Go Eat Worms - 1994

The Abominale Snowman of Pasadena - 1995

Return of the Mummy - 1994

The Beast from the East - 1996

The Headless Ghost - Has a split in spine - 1995

Some have more wear on spines than others, the headless ghost has a split in spine please see photos. 

Still able to read and enjoy.