Welcome to the 1520 Perfect Dictionary

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Standard book number
STANDARD BOOK NUMBER

Definition: A number allotted to a book by agreement of (international) publishers which shows area, publisher and individual title.
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See perfect number (11).

See perfect allotment (1).

See perfect specificity.
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See perfect Internationalization.
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See perfect standardization.

See perfect particularness.

See perfect agreement (1).

1520 Products

1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way.

1520 Sex Game

1520 Puzzles

1520 Marriage Game