Always use the Library catalogue to locate your books. This will find both ebooks and hard copy books on the Library shelves at all campuses.
Many mechatronics books are at the Call number TJ163.12, or close by, but they can be shelved at other locations if the primary emphasis is on another topic.
Books, journals, kits and DVDs in the USC Library are shelved by subject. Call numbers on books and journals appear most often on the spine or on the front cover if the spine is too narrow.
Here's a sample call number, with explanation of how this affects the way the item is shelved:
LB - describes general subject area; shelved alphabetically
2395 - narrows subject area; numerical order (whole number)
M44 - subject area OR author (alphabetical then decimal order)
2012 - year of publication, numerical order