Third, Choose the group of records (or scope) Library Catalog and change the Material Type dropdown list to 'Books'
Third, type in the keyword "IGI Global" in the first search box, using quotation marks around the two words. (Using quotes is called phrase searching, which helps limit search results to only those two words, in that order.)

Click, "Search" and the results will include IGI Global STEM and Social Science eBooks
Tweak Your Results, using the limiters on the left-hand side to by Subject

