How to make a Clamshell Portfolio

This video is demonstrates how to make a clamshell portfolio, also called a drop spine box. Post questions in the comments below. You can see more information on book art related topics at http://jimescalante.net/teach 0:40 Making measurements. 01:25 Materials selection. 02:20 Parts of a portfolio box. 02:50 Measurements for the bottom tray. 03:55 How to assemble the bottom tray. 04:52 Covering the walls of the tray. 08:06 Cut and turn ins for the open section of the tray. 13:32 How to cover the base of the tray. 14:10 Assembly of the outer case. 19:10 Final assembly of the portfolio.