TEM_3D_Wizard program is the tool for 3D TEM direct and inverse problem solution. The program gives to user a lot of possibilities, however the user need to have some experience to work with it. Presented here demo version gives to user possibility to "play" with the programs to see its possibilities Download the manual of the program and demo version. Unrar the program and place both files in one directory. Ask if you have questions. We are ready to make modeling of one model to user for free to demonstrate the possibilities of the program.