Puzzle Booklet - Square to Triangle

These booklets are produced in Hungary by hand in limited editions; their contents are made of laser cut wood.  This particular puzzle is based on a known mathematical dissection.

Square to Triangle has two challenges:

1.  Fill the square shaped hole inside the booklet.
2.  Fit all the pieces into the triangular frame inside the booklet.

Cleverly designed with an attractively innovative book cover.  Solution is included.

Made by Péter Gál.