 In this video, we'll cover how to locate library items through Catalyst, the Hopkins Library Catalog. Catalyst includes holdings from all of the Hopkins Libraries. These include the Welch Medical Library, Sheridan Libraries, the School of Advanced International Studies Library, the Applied Physics Laboratory Library, and the Freedheim Music Library. Through Catalyst, you can access eBooks or request print books and other media. To get started, go to the Welch Library website. Then navigate to the tab that says Books, Journals, and Media. Enter your search terms and click the magnifying glass icon to run your search. For example, I'll search for Harrison's internal medicine. On the next page, you can browse the results. If an item is available in print, like this 2005 version of Harrison's, the location information will be listed in a gray box underneath its title. You can request to have the item sent to a different location by clicking on the Request button. Log in with your jet ID and then choose from one of the 19 delivery locations. You'll receive an email when it's ready for pickup. Looking to the left of the results, you'll see options to refine your search using filters. These allow you to limit for criteria like format, publication year, and author. One filter I find particularly useful is the format filter. With it, you can specify the type of materials you're looking for. For example, clicking on the Online option limits my results to eBooks and other electronic items. If you find an eBook that looks good, such as this 2015 edition of Harrison's, click on the link inside the Online Access box to open it. Conducting a basic search is that easy. Now let's try an advanced search, which allows you to enter more information about an item and to increase your chances of finding it. Start by clicking on Advanced Search in the upper right hand corner. Now enter the citation information that you know about an item. For example, I'm going to search for the book titled, Nanotechnology, Environmental Health and Safety. I know it was edited by Hull and it was published in 2010. When you're ready, click the search button. From the results page, find the correct item and click on its title. This will open a record for the item where you'll see the full bibliographic information. In our example, you'll also see that the book is available online. Click on the link to open it. But if instead you want this book in print, you can click on the Check Borrow Direct button to see if you can request it through this service. Borrow Direct is a loaning consortium between Hopkins and other selected libraries that you can use to request a physical copy of the item and have it delivered to the Welch Library. It's available free to Hopkins affiliates and it usually takes three to six days for a requested item to arrive. In addition to being able to access a request an item from this page, there are a few other helpful features in the Tools box worth noting. First, if you're logged into your account, you can bookmark the item in order to find it again the next time you're searching the catalog. You can also access the citation information for the item, export it to a reference manager and email the citation information to yourself by using the corresponding links in the spots. To access your catalyst account, go to the upper right-hand corner of the screen. Here, you can see the items that you've checked out, when they're due, and whether they're eligible for renewal. The last thing to mention is that you might run into a situation where the item you're looking for is not available online or in print. For example, if I search for the book Acupuncture in Pregnancy and Childbirth, I get a page that says no results found for your search. This means that Hopkins doesn't own the item, but I can order it through Interlibrary Loan, a free service available to all Hopkins affiliates. A link for Interlibrary Loan is on the Welch Library's homepage. Once requested, items usually take a week to ten days to come. Learn more about Interlibrary Loan in our Interlibrary Loan video. In summary, Catalyst is a powerful tool that allows you to find and request materials held in Johns Hopkins collections. For more information or to get additional help using the catalog, visit the Get Help section on our website, reach out to the Welch Service Center through chat, email or phone, or contact your informationist directly.