Rather rare works by Thomas Pierce [1622-1691] was originally a consistent puritan, Calvinist in theology; generally Presbyterian and operating in accord with the Westminster Assembly. He did, however, become disenfranchised with the Assembly during the Civil War, watching the Puritans behave as violently, aggressively, and at times underhandedly as any others. He determined that it was the high Calvinism that was the culprit and became something of a precursor to the theology of John Wesley. Even further toward Methodism than Richard Baxter, who was known for being an advocate of faith being justified of her children [i.e. righteousness] school.

The second work, though on opposite sides theologically, feels practially very much like Jonathan Edwards' "Religious Affections." 

The works are a fascinating response to the perceived hypocrisy of the Presbyterians and Independents of the time [something also noted and decried by Roger Williams and other dissenters]. 

Pierce, Thomas. The Sinner Impleaded in His Own Court. Wherein are Represented the Great Discouragements from Sinning, which the Sinner Receiveth from Sin Itself. London. Printed by R. N. for R. Royston. 1670. 256pp.

[bound with]

Pierce, Thomas. The Signal Diagnostick. Whereby We are to Judge of Our Own Affections; And as Well Our Present, as Future State. Or the Love of Christ Planted, Upon the Very Same Turf, on which it once had been Supplanted by the Extreme Love of Sin. Being the Substance of Several Sermon, Deliver'd at Several Times and Places, and Now at Last Met Together to Make up the Treatise which Ensues. London. R. N. for R. Royston. 1670. 167pp. 

Probably an early 20th century sort of amateurish full calf binding. Not awful. That's about the best we can say for it. Textually, quite good. All pages in good order, some handling, occasional turned corners. Definitely ready for many more years of use.