fisher has invented several brick paving and mosaic tiling systems. for the orang utan pavement maze at edinburgh zoo, he invented a new paver tessellation using 7-sided and 5-sided (regular pentagon) bricks. the 'fisher paver', his second paving system uses 7-sided and 4-sided bricks and has been installed within paving projects on both sides of the atlantic. its benefits include being able to achieve dynamic and intriguing designs straight off the pallet with no cutting, thus offering excellent labour productivity when laying; it only requires one new 7-sided paver shape, yet its modular scale matches all industry-standard paving systems. adrian's third paving system is the mitre system, which he invented and patented together with the american mathematician ed pegg. used for both mosaics and paving, their distinctive angular shapes create unique and pleasing images. notable examples of its use in england include four historic mosaics with the millennium maze in marlow, buckinghamshire, and the 24 ft high scitec mosaic at oundle school, northamptonshire; and in america, the tree of life mosaic in a private garden in roxbury, connecticut.