...and not for any insight into the role of ritual in everyday life. Robert Fulghum is a sort of Winnie the Pooh of expository writers: he is the reader's loyal friend with a heart as big as outdoors, but when it comes to organizing his thoughts and presenting them clearly, he is 'a bear of very little brain.'
He tells great anecdotes and excels at bringing a tear to your eye. This book is almost worth buying for one chapter which describes the absolutely perfect nontraditional wedding. If you aren't sniffling audibly by the end of it, you aren't human. And there are several other narratives of equal sentimentality.
On the other hand, if you want advice on how to use ritual to add richness to your daily life, or your family's life, you won't get much help here -- just encouragement.
For a truly practical book on family ritual with many, many practical suggestions you can apply immediately, see Susan Lieberman's NEW TRADITIONS -- which Fulghum recommends in his bibliography.