Im planning on writing seven books further on in the future (im working on two right now) and I was wondering, are publishers always hoping for really long ones like 200 000 words, ect. My books are very creative but their likely only going to be about 50 - 60 or 70 000 words. Do fantasy books always have to be long??

No they definately do not!look for example at The Chronicles of Narnia....their books are around 50k words a book and C.S. Lewis is one of the greatest authors of the 20th century!!they want creativity and new ideas!hope this helps!

If you're worried about word count, have you considered combining some of the books and making it a 3 or 4 book series? Naturally, this would take some serious revision, but it might solve the issue. But small books are often more inviting to read. Neil Gaiman's "Stardust" is rather short, and so is Matheson's "I am Legend."

No they don't and they sure can become best selling, as along as it isn't like dragon and witches and stuff which has been done and done many times. So give it a shot they can be real good easy, collectable reads.

It depends on the age group you are targeting. 50,000-60,000 word-counts may be fine for young adult novels(although the Harry Potter books are much larger), but adult readers will probably expect more book for their money. If the books you are writing are closely related, such as sequels, it's perfectly acceptable to combine two or three books into one novel, separating them with page breaks labeled "book one", "book, two", etc. The type of fantasy also matters. Tolkienesque fiction usually attracts readers who want to immerse themselves in a richly-described, lengthy epic, while writers of other types of speculative fiction may get away with shorter works.Finally, some publishers of fantasy(such as Daw books) will not accept manuscripts that are fewer than 80,000 words.