The 2012 edition of the Moravian Daily Texts, published by Mount Carmel Ministries, is now for sale online. This is the devotional guide that I've used for years and which I teach my spiritual formation students to use. When all editions are taken into consideration this is the most widely used devotional book in the world.
The Moravian Church which has been selecting the texts and publishing them continuously since 1731, also publishes several versions. However, I use the Mount Carmel Ministries version -- not only because I like the layout but also because of the additional resources. They've developed the T.R.I.P. method of prayer, which I teach to my students. And they've included Martin Luther's Small Catechism in the back of the pocket-sized book.
Here is a bit of the history of the Daily Texts (or Loosung in German).
They cost $8.95 plus shipping. But if you order 2-9 copies they are $6.95 each. (Same price as last several years.) There are additional price breaks when you order more.
There is a free Daily Texts website for those who prefer that option. I use both -- depending on my schedule for the day. (If you are in Australia, Micronesia, or Asia, the downside is that the online text of the day from Mount Carmel Ministries does not appear on their website until your day is almost over. It's that international dateline issue and Americans have a hard time understanding just how huge the world is.)
DISCLAIMER: I'm NOT getting any kind of commission for pitching this.