Don’t worry, there are lots of options.
Before you have an active USOSweb account:
Information about courses can be found in several places even if you haven’t yet activated your USOSweb account and you are just starting to plan your academic programme at the Jagiellonian University.
The Institute of European Studies list of courses
If you are student of European Studies, then it is a good idea to start here. This is the list of courses at the Institute of European Studies which are recommended for Erasmus students. These are courses that don’t have special prerequisites and aren’t exclusive to a particular degree programme. They are marked as BA, BA/MA, or MA to give you an indication of the expected levels but as an Erasmus student you would be able to register for any of them if there is still an open space when you register. This list contains all those which are currently planned for the coming semester, so this list may contain the titles of some courses which have not yet been updated in USOSweb (see below). That might be important if you are planning your Learning Agreement long before your semester starts.
Searching USOSweb for courses
The most detailed information for Erasmus students about courses is usually available on USOSweb. You can search the Directory tab without having an account or being logged in.
If, for example, you were looking for courses about ‘security’ then you can set the results to show only those courses in a language other than Polish.
And then you would get a long list of courses with ‘security’ in their title from units across the whole of the University, like this:
If you are not logged in, then all the shopping basket icons will be red (‘not available to you’), but you can see which semester they will fall into. When you are logged in and a registration has started and it is available to you, then the icon will be green. When you have an account and you are logged in, you will also be able to use the ‘Student’ tab at the top to see those registrations which currently are open to you as a block. (Those will change over time.)
Using this method, you may find interesting-looking courses that are not recommended for Erasmus students on semester-long exchanges (the course might have prerequisites, it might be a whole year long, it might be specific to only one degree programme, etc). If you have questions, please feel free to ask in the Institute office or write directly to the instructor. But generally, the Institute list which is linked above is a reliable way to know if a course is recommended for Erasmus exchanges.
Usually, information about this semester’s version of a course is only visible in USOSweb when final information about classrooms and class times are available. That may mean that some courses are planned, but not yet visible in USOSweb until roughly a month before classes start. If you see a future course on the Institute list but not in USOSweb, it is very likely that it has not been added to USOSweb yet, but it will be added before registration starts.
The International Student Office List
There is a webpage with links to some of the courses recommended for Erasmus students which has been collected by the International Students Office. It is not a complete list. However, it helpfully gathers information from selected sources into one place and can be very useful for browsing to see what’s available across the University system.