How do I find the definition or information/books about "cultural capital"
For a definition of "cultural capital," you would probably be best doing a critical Google (or other search engine) search, looking for informative, yet established and trustworthy, websites that have overviews of what this means. I searched the term and found a few different sources that offered descriptions of what "cultural capital" means. Here is just one: http://www.historylearningsite.co.uk/cultural_capital.htm. Websites are good for background research, but if you are doing a research assignment on this topic, you should move beyond free websites to gather research.
To do more specific, higher level research you could search our library databases. EBSCO Academic Search Complete is a multidisciplinary database found here: http://web.ebscohost.com/ehost/search/advanced?sid=e96c08a0-a400-4e0d-930c-0a3852c1a829%40sessionmgr10&vid=1&hid=15. Within the search screen, you can enter the term "Cultural capital" in the first search bar and any other terms you want to research ("education", "success", "United States") to form your initial search string. These results will be more complex than what you find on websites, but they will provide you with excellent information to begin your search.
We have other databases that could help you as well, but it really depends on what direction you want to take your research. I suggest you do basic background research on the web to develop a good understanding of the topic, then begin to search in the databases. Here is a guide to general tips for using our databases as well: http://libguides.neumann.edu/content.php?pid=138917&sid=1188001. If you have any further questions, or need help navigating our databases, feel free to contact us again, or to come into the library.