This page is not intended for those who have not seen the lead up to it. Previous pages in the side panel will supply it. The etext gives it all.
Until improved legibility has been achieved, you may need to enlarge the screen. You may have a device in the lower right corner. Otherwise, use the Control key with the + key and to decrease, use the "minus" or "dash" or "hyphen key.
The key at the foot of the table has been repeated at the top in the next image to enable an easier description.
The first item in the key at top left is "1 Food Preferences p 15".
The first item in the table in the same position bearing a "1" is "Hospitality".
You find p 15 in the etext but read the "Using etexts" page first.
Some entries are annotated with a letter.
Go to the the "TECHNICAL" heading and find "technical innovation25 E"
It is repeated under the "ECONOMIC" heading. Read about "technical innovation" on page 25 of the etext.