Crossway's weekly special is from their
Theologians on the Christian Life series:
1.
Calvin on the Christian Life: Glorifying and Enjoying God Forever -
$1.99 (I paid $9.99 for this in May
)
2.
Schaeffer on the Christian Life: Countercultural Spirituality -
$1.99
3.
Bonhoeffer on the Christian Life: From the Cross, for the World -
$1.99
4.
Warfield on the Christian Life: Living in Light of the Gospel -
$1.99
These are available from Kobo as well; same price ($1.99) in the US store.
("
Discounted prices available through 7/13/14.")