Go to your settings page.
(See http://luzme.uservoice.com/knowledgebase/articles/308153-how-do-i-change-my-settings- if you're not sure how)
Click the "Emails & Alerts" tab.
Check the "Receive Alerts by Email" box and click "Save"
Please note: if you choose not to receive the price alert emails and you don't log in to Luzme occasionally, then we will stop monitoring the books on your watchlist.
Eventually, we will pause your account entirely.
If this happens, it is easy to reactivate; simply login again or turn the price alert emails back on.