Tome of Gainful Exercise (Magic Book)

Called Manual of Gainful Exercise in the DMG

Tome of Gainful Exercise
Basic Information
Type	Magic Tome
Rules Information
XP	5,000 xp
Value	50,000 gp
Source
Source Book	Encyclopedia Magica Dungeon Master Guide

This work is similar to the Tome of Bodily Health, but its reading and prescribed courses of action will result in the addition of 1 point to the reader's Strength.