My book making teacher, Ellen, made this amazing compilation of different folds and book bindings for the class to purchase. Of course I bought it, and boy am I happy about it! In the book there are instructions for the turkish map fold, which I used for one of my books. It is such a beauiful fold that looks complicated but it super easy! Try it out yourself :)
supplies: square piece paper (rectangles can also work with careful measuring) bone folder ruler* pencil*
step 1- using your bone folder, fold your piece of paper diagonally in both directions, with the image (if any) facing itself
step 2- open the paper, turn it over and fold the piece of paper in half the other way so the image is facing out.
step 3- unfold it and turn it back over so the point is facing up, and push the horizonal fold inward
step 4- fold the top two points inward, meeting in the cetner. flip it over and do the same thing on the other side
step 5- invert the folds of the four points so they are tucked on the inside