Find More Money by Art Rainer
FIND MORE MONEY includes some decent points, all presented from a Biblical perspective. If you find yourself in a tough financial situation, this could be a good place to start. Some of the ideas are similar to those in the famous "Dave Ramsey" seminars.
The author correctly notes that simply "cutting back" is often not enough. If you are already spending $1.19 per meal, you probably need to figure out how to get more cash.
This is a super-quick read, offering some simple ideas for picking up money via side gigs. The author presents points via discussions with friends who have financial trouble.
For a more meaty take on employment, I would consider the "What color is your Parachute" series.~