For those of you who are experimenting...
Take a linked book (made by dropping a book into you small craft window making a link to where you are). Travel to spawn. Use Link Modifier to change the name of the book (e.g. base, dig, spawn, ducks place etc.) and select "Intralinking" and "Follow". This allows teleporting within the same world (e.g. overworld to overworld) and you won't drop your book.