This textbook is very handy and is typically required for semesters 1 and 2.
Your instructor will typically give you the required drawings.
How to download:
Visit Library Genesis.
Click "Libgen & IPFS & Tor".
Click "GET" - located at the very top of the page.
Alternatively:
For a DIRECT download link, click here.
Keep in mind this is hosted on Library Genesis so download speeds are slow.