A person convicted of theft under subsection (a) is guilty of a Class A misdemeanor, except that the theft of library material where the aggregate value exceeds $300 is a Class 3 felony. A person convicted of theft under subsection (b) of this Section is guilty of a Class 4 felony. A person convicted of theft under subsection (c) is guilty of a petty offense for which the offender may be fined an amount not to exceed $500 and shall be ordered to reimburse the library for postage costs, attorney's fees, and actual replacement costs of the materials not returned, except that theft under subsection (c) where the aggregate value exceeds $300 is a Class 3 felony. In addition to any other penalty imposed, the court may order a person convicted under this Section to make restitution to the victim of the offense.
For the purpose of sentencing on theft of library material, separate transactions totalling more than $300 within a 90-day period shall constitute a single offense.
720 ILCS 5/16-3