Questions

Is there any spell or anything that can bring you in and out of a fictional world,or a place you've made up? If not, is there a spell or anything for a wish book?

There is not any way to physically transport anywhere, much less to a completely fictional -- that is completely not real -- place. It exists in the imagination, only.

You may want to do some reading on what can and cannot be done with magick, these things, can't be done.

Magick is an assistant, it can help us with our daily lives, it can't give us the ability to teleport in and out of a fantasy world and it can't grant us everything we desire, we have to work for things too.

As others have said, you cannot teleport to a fictional realm.

What do you mean by a wish book, exactly? There are spellbooks that some practicing witches publish (some more credible than others), and there are plenty of spells that are meant to help the caster gain something, to an extent. (If you wish to have more money, you could cast a spell that could help draw money to you; if you wish to turn into a dragon, that's not going to happen).

Hello TheNobody, there is no spells i'm personally aware of that do this. You can however manifest places you've created while lucid dreaming or on the astral realm. My outlet is just daydreaming before I fall asleep x.