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Here is the line 4 instructions ...
Line 4. Enter other job-related expenses not listed on any other line of this form. Include expenses for business gifts, education (tuition, fees, and books), trade publications, etc. For details, including limits, see Pub. 463 and Pub. 529. If you are deducting depreciation or claiming a section 179 deduction, see Form 4562, Depreciation and Amortization, to figure the depreciation and section 179 deduction to enter on Form 2106, line 4.
