Each exam item (a question with its possible answers) has at least two references to standard books or other sources of project management. Most of the questions reference the PMI A Guide to the Project Management Body of Knowledge (aka the PMBOK Guide).
The Rite of Spring (Le Sacre du Printemps) is a ballet in two parts. The entire ballet was a concept developed by Igor Stravinsky. He wrote the music. The set and costumes were designed by Nicholas Roerich.
Spring Equinox The Spiritual Meaning of the Spring Equinox Ancient Sacred Sites Aligned to the Spring Equinox A Ceremony to Celebrate the Spring Equinox. Summer Solstice The Spiritual Meaning of the Summer Solstice Ancient Sacred Sites Aligned to the Summer Solstice A Ceremony to Celebrate the Summer Solstice. Autumn Equinox The Spiritual Meaning of the Autumn Equinox Ancient Sacred Sites Aligned to the Autumn Equinox A Ceremony to Celebrate the Autumn Equinox