If you haven't subscribed to Peter's Monthly Missive, here's why you should: as you can see from the email above, there will be lots of free and discounted eBooks available only to subscribers. The books go on Presale, so you will get to be the first people to read them, and leave them bad reviews (or good reviews if you think they're good!)
The emails will always be monthly, so you don't have to worry about them cluttering your inbox. Oh, and if you already subscribe and didn't get the newsletter, check your SPAM folder to be sure it didn't go there.
The August newsletter is coming soon, so be on the lookout. It will be chock full of pre-releases and coupon codes.