Use AND between two or more terms to find materials with all the terms. Searching for sports AND concussion will only include books that have both global warming and atmosphere in their contents.
concussion OR head injury
Use OR between similar terms. Searching for concussion OR head injury will find books that refer to either term.
"head injury"
Use quotation marks ( " " ) around specific phrases such as "head injury" to find the words in that specific order.
concuss*
Use an asterisk ( * ) to find multiple endings of one word. Using concus* as a search term will include results that refer to concussed and concussion.
When You Find a Book in the Library Catalog...
...Write down the book's Call Number. The call number is basically the book's address, and is what you will use to find the book on the shelf.