I first start with a rough draft of what all the features are going to belong at what area of the school library, then i will draw another specific sketching which will be shown in the final design.
What should I upload in this Develop Solutions step?
Consider uploading images (JPG, GIF) of your rough digital model. It's ok if your model is still a work in progress. Show an axonometric or perspective view with people, which will help others understand the scale of your library.