According to National Geographic Daily News, summer officially kicks off today with the summer solstice, which is the longest day of the year. This summer’s solstice takes place a day earlier than it's been for the past three years, due to the fact that 2012 is a leap year. To see the full article go to the following link: http://ht.ly/bIri1. To find books in the library on the solstice use the subject headings Summer Solstice and Winter Solstice. Related information can be found under the subject headings: Sun, Astronomy History, Maya Astronomy, Tropics, Stonehenge, and Calendar History. You can also find information in the Marinet Discovery Catalog by typing in the subject heading Summer Solstice. In this catalog you can see not only what’s in Marinet (under Catalog at the top of the page) but you can also find periodical articles (click on Articles at the top of the page).