Book Series length?

[Juniper]

   So I just had another quick question I was curious about!
   Do you prefer books that start and end in the same cover, or trilogies, or Harry Potter length series, etc.?
   I prefer trilogies (Hunger Games) and things like Animorphs, where there were 53 (?) books in the series excluding the extra spinoffs and background books! What about you all? 

[Mariah]

I enjoy both. Although on some I really do wish another book to continue things was wrote. Hugs
Mariah