Please check the Corset Making Tutorials page for lots of 'how to' instructions. For more in instructions on corset making please see the book "Corset Making - from Beginners to Intermediate" by Julia Bremble available here.
Please note this and the Victoria Corset Kit are the only corset kits on the market which come with pre-cut boning. This is because these patterns have gone through rigorous testing as they are the house patterns of Sew Curvy and The Oxford School of Corsetry.
To see what the Sophia looks like in action, please see the gallery here