Reformed Covenanter
Cancelled Commissioner
There are many volumes heavily discounted in the Logos sale on Wipf and Stock books. While I already have it in paperback, I purchased a copy of Heinrich Heppe's Reformed Dogmatics. I may still read the hard-copy, but the Logos version is handy for copying and pasting. I may purchase some of Meredith Kline and William Lane Craig's books that I do not already own (though not Professor Craig's defence of Molinism!!!). Also, I seem to recall this sale occurring last year as well, as I purchased a couple of books by those authors back then.
Edit: This link might work better for you. There are important books available from various authors, including Geerhardus Vos and D. A. Carson.
Edit: This link might work better for you. There are important books available from various authors, including Geerhardus Vos and D. A. Carson.