From publisher blurb:
In most medieval fantasy settings magic items are not very rare – most adventuring groups hold at least a handful of them, with some of the most common being weapons and armor.
However, in some settings and specific campaigns, magic items are scarce. Without easy access to magic, great craftspeople are encouraged to developed and produce above-average weapons and armor capable of incredible feats, like extremely sharp weapons or very heavy armor designed to not encumber the user. In this title you will find equipment options of the non-magical nature for all characters who want an advantage in battle:
Non-magical modifications to armor
Non-magical modifications to weapons
General modifications to items that can provide a social bonus