Library of Congress call numbers are arranged alphabetically and numerically. Call numbers are read from left to right and from top to bottom. Sometimes call numbers are written out all on one line as you see above, and sometimes they are displayed in a column as below. An LC call number is interpreted the same way no matter how it is formatted, whether it is all on one line or in a column. Additionally, there can also be a line break after the initial letter or letters, as shown in the first table below. The following tables elaborate upon how to file material using the LC system.
Letters in the first part of the call number are in standard alphabetic order from A to Z:

Numbers in the second part of the call number are in regular numerical order (as whole numbers):

However, note that there may be a decimal place within this number:

Letters in the third part are again A to Z:

Numbers in the third part of the call number are in decimal order. It is important to remember that there is a decimal point before this number:

Call numbers that are otherwise identical are shelved in chronological order (oldest to newest year).