How to read a call number


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Items in Tisch Library are shelved in order of their Library of Congress call number.

Items are first arranged on the shelves in alphabetical order by letter:

A B F H J JA K KF KFM Q QA T U Z

Within each letter combination, they are arranged by the number:

QA
76
QA
273
QA
273.25
QA
273.4
QA
279
QA
279.2

Then, items are arranged by the alpha-numeric segment, which is read as a decimal number.

Thus, .M4 is read as M.40 and follows .M388 (read as M.388) on the shelf:

QA
279
.H83
QA
279
.M388
QA
279
.M4
QA
279
.M44
QA
279
.M5
QA
279
.S5

You can use the maps of the collections -- Floor Plans: -- at Tisch Library to find the general area of the library where your call number will be located.



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