Series lists:

Artemis Fowl (Eoin Colfer) 

Chronicles of Narnia (C.S. Lewis)

The Edge Chronicles (Paul Stewart and Chris Riddell)

Enchanted Forest (Patricia Wrede)

Fudge books (Judy Blume)

Hank the Cowdog (John Erickson)

Lost Years of Merlin (T.A. Barron)

Magic Tree House (Mary Pope Osborne)

Redwall (Brian Jacques)

A Series of Unfortunate Events (Lemony Snicket)

Spiderwick Chronicles (Tony DiTerlizzi and Holly Black)

Tales of Magic (Edward Eager)

Time Quartet (Madeleine L'Engle)

Time Warp Trio (Jon Scieszka)

Warriors (Erin Hunter)

Wayside School (Louis Sachar)