How to teach someone to grade books?

[jerome34]

My recommendation is to take 10 books in varying condition from roughly the

same time period. Have the individual use Overstreet (and what ever else you

have told him) to grade each book and write it down on a sheet of paper.

You keep the paper and shuffle the books.

 

In a couple of days, have him do the grading again.. Same way.

 

Repeat the above at least 5 times.

 

Then recopy his lists to show for each book what grades he found.

 

You will find some differences. Check and get answers to "why was the grade

so low this time?" and "why was the grade so high this time?" Practice like

this can help him to become consistent. Then apply your grades and experience

to make his grading consistent with yours (or your interpretation of Overstreet or

CGC). Practice, practice, practice.

 

Then turn him loose on another 10 books as a test. Repeat, if necessary, until

the differences in grading are usually 0 with an occasional 0.5 and a very rare

1.0 (preferably with the difference being as often + as -).

 

[c-mack]

reading OS and seeing what CGC grades things are both how I got started but the biggest thing that help me was finding something who i Trust and just asking Questions then it got to a point where i started comparing my grades to him and another....although I feel strong about my grades I still have a long way to go before i feel im in the same group as my Mentor

 

 

so if you feel you're worthy enough grader to teach i would share your info and have them see what OS has to say and then have them grade a raw book and sub it to see how cgc lines up