You can recommend an item to another user, and other users can make recommendations to you. Recommendations can be done in two places: either when you're viewing the item you want to recommend, or when you're viewing the user you want to recommend to.
First, locate the item you want to recommend using a search or clicking through to it on your bookshelf, then click the “Recommend this item” icon next to it:
Next you have to choose the user you want to recommend this to; use the search box that displays on the page, and once you've found the right user, click the “Select user” icon:
You then have the option to enter personal text to appear with the recommendation:
Once you've sent the recommendation, the user will see a notification for it when they log in:
First, find the user you want to recommend a book to (for example, by searching or clicking through from your friends list), go to his or her profile and click the “Recommend to a friend” icon by their picture:
Next, choose an item from your bookshelf or search for an item to recommend, then select it using the “Choose item” icon:
Then you have the option to enter a personal message to add to the recommendation; do this if you wish, then click the “Recommend” button:
Once the recommendation has been sent, the user will see a notification for it when they log in:
From your own profile box, you can follow a link to “Recommendations”. This will display two boxes:
The “Recommendations to me” box, which shows all the recommendations you've received from other users:
And the “Recommendations I made” box, which shows all the recommendations you have made to other users:
When you view someone else's profile, you can click the “Recommendations” link in their profile box to see two lists:
The “Recommendations user made” box:
And the “Recommendations I made” box: