There are two main ways to find information in Practical English Usage online.
If you have a specific question, for example ‘Why is paper sometimes countable and sometimes uncountable?’, you can search the PEU Index using the search box at the top of every page.
Make sure ‘Practical English Usage’ is selected, and type a word or phrase in the search box, for example ‘paper’ or ‘countable nouns’:
Press or tap ‘Enter’ on your keyboard, or press/tap the search symbol at the end of the search box. An entry from PEU will open automatically, or you will see a list of possible search results where you can choose the most relevant entry.
If you want to find out more about a general topic (for example, ‘Passives’), you can browse the Contents overview. This will be on the right-hand side on a larger screen, or further down on a smaller smartphone screen. It can be expanded using the ‘+’ symbol.
For example, you can find out more about the contents of the ‘Passives’ Section by expanding that part of the Contents overview to show the different entries:
You can move through the PEU entries using the ‘previous’ and ‘next’ buttons at the bottom of the entries. These will open the previous/next entries in the order in which they appear in the printed book: