From time to time here at Monergism we plan on taking some good theological resources and making them available in a way that they can easily be read in a smart-phone friendly format. Of course these can also be read on your laptop or tablet, but many of these were previously only available in such a way that smart-phone users could only see them in tiny almost unreadable text.
The following are a few that I have been working recently on that I thought you would find helpful and edifying.
What is Covenant Theology? by J I Packer
Introduction to the Sermon on the Mount by Dr. Martyn Lloyd-Jones
Mortality; Judgement; Heaven; Hell by J I Packer
Man's Own Character No Ground Of Peace by Horatius Bonar
The Present State of the World by Herman Bavinck
Father, Son, and Holy Spirit - Each Part in Saving Sinners by James Buchanan
Five Arguments for the Unity of the Covenant of Grace by Robert L Reymond
The Knowledge of Christ Crucified by Stephen Charnock
Verifying The Resurrection: Six Evidences by James Montgomery Boice
The Virgin Birth and History by James Montgomery Boice