Origami: Book (Binder)
Designed By: Hyo Ahn
Link to designers website: http://www.origami-make.com/howto-origami-instructions.php
Link to the image tutorial: http://www.origami-make.com/origami-bed-double2.php
Tips: Take care of your folds at the beginning, and the rest should be fairly easy if you follow the tutorial exactly. Making careful folds, and making sure everything is properly aligned will allow you to get best results for the final product. This rule is something that should probably be kept in mind when making any origami model. Other than that, have fun!
Happy folding !