This is less a manual to ""teach"" a parent to play with his child than a series of easygoing, low-keyed behavior and growth profiles with suggestions for enriching the child/parent relationship. The authors, involved in child care and studies in Toronto, present their behavioral sketches for six periods in the stretch from birth to three years. The appropriate activities suggested are grouped roughly into gross and fine motor coordination; creative, sound, sight, language play, etc. From the infant welcoming the parent for the first time with an ear-to-ear grin, to the toddler exploring the house (""Just watching your baby examining the shoes in your closet is an experience in itself"") -- there are many generally rewarding episodes shared by the child and his special adults, stimulating to the natural curiosity and energy of the tot, amusing and sometimes revealing to the observer. Most of the materials are household staples although directions are given for special toys and games, and there is advice about trips, extra-familial socializing, etc. Although the book list included is somewhat indiscriminate and antiquated, this is on the whole an affectionate, commonsensical guide for parefits by three others who have retained their pleasure and real interest in small children and babies.