Totally the cherub series it's so popular i recommend reading it!! The maximum ride series is pretty good, so is the alex rider and twilight
"The Lord of the Rings" trilogy by J.R.R. Tolkien is often considered one of the most popular book series ever. Its popularity worldwide and enduring legacy make it a strong contender for the second most popular book ever.
It is one of the most popular.
'The Simpsons'
Twilight and Breaking Dawn are the two most popular books from the twilight saga series, but they shouldn't be.
the most popular book roald dahl ever wrote was georges marvelous medicane!
The one on the right.
saved by the bell hands down
Probably the Redwall Series, by Brian Jaques.
The most created book series was the wonderful wizard of oz
Probably the Redwall Series, by Brian Jaques.
It wasn't the most popular series when this question was originally written nor is it today (09|2014). The Simpsons has never been the "most popular". The highest the show ever ranked was #21 for its 12th season.
Goosebumps is the second best-selling book series under Harry Potter.