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 (season) Spring is one of the four conventional temperate seasons, following winter and preceding summer. There are various technical definitions of spring, but local usage of the term varies according to local climate, cultures and customs. When it is spring in the Northern Hemisphere, it will be autumn in the Southern Hemisphere and vice versa. At the spring equinox, days are approximately 12 hours long with day length increasing as the season progresses. Spring and springtime refer to the season, and also to ideas of rebirth, rejuvenation, renewal, resurrection and regrowth.