The paper folding community is very generous in creating and sharing tutorials and instructions. Origami designs can take a very long time to create. Creating a guide or tutorial for these designs takes time too. That being said, on the internet and in books you will find hundreds of models and designs. Sites such as Origami Instructions and Origami Resource Center are some of the places that many of these origami designs are created and shared. Youtube has hundreds of instructional videos which will take you from very basic origami design to extremely complex ones. Some of the greatest and most consistent origami Youtube channels are that of Tadashi Mori and Jo Nakashima.
On the White on Rice Youtube Channel you will find some origami tutorials below.