Find the Drive app (green triangle )
Enter email address and email password (begins with 17…)
On left side next to MY DRIVE click on three horizontal lines
Choose Shared With Me
Click on the word textbooks
Click on the word English
Click on the name of the textbook
On each chapter, click on the three dots in the corner
On the right side, slide the button to AVAILABLE OFFLINE. Chapter should begin downloading.
Click on next chapter and do the same for all chapters in all books.
When all books have downloaded, go back to My Drive. Choose Offline or Recent.
All chapters and books should appear. Click on three dots in bottom corner.
Click Send a Copy. A screen opens up: Choose Open in iBooks
Do this for every chapter and every book.