Question: What do I need to make a pear tree into an espalier?

Answer: Pear trees (and apple trees, too) are good candidates for espaliers. All you need is a fence or a wall for the plant to grow against, some fabric to tie the branches in place, and some sharp pruners. It's a 4 to 5 year process to get the basic framework of your espalier completed, but once that's done it's just a matter of rubbing out buds and pruning off misplaced branches. I suggest that you find a book with illustrated steps to training as a guide. Good luck with your new tree!