It's available at your public library....for free

Just one of a number of such guides.

Link to April 8 Milwaukee Journal Sentinel article, "'Postal positions' ads won't deliver on promises of a job".

Excerpt: John and Pam Katrichis thought they hit the jackpot when they saw an advertisement for "postal positions" offering full benefits and solid pay.

The Milwaukee couple have been searching for work for several months. John was laid off by Milwaukee County in July. Pam lost her job as a retail supervisor in December.

A few weeks ago, Pam called the toll-free number listed on the ad and got a spiel that "right now is a great time to be hired by the U.S. Postal Service."

Except it isn't. And the advertisement was not truly about postal jobs.

A salesperson tried to persuade the couple to pay $129.90 for study materials, claiming the information would help prepare them for the test to become federal postal workers.