"Simply put, Agility is the most fun you can share with your dog," the author asserts, and those who have jumped on the bandwagon for this fast-growing sport will enthusiastically agree. Racing against the clock, dogs must, among many challenging obstacles, clear a series of hurdles, dash through tunnels and up and down see-saws, and weave in and out of a line of closely spaced poles. Simmons-Moake provides a solid introduction to the sport, while husband Gordon's detailed appendix on obstacle construction is extremely useful to those just starting out.