If you need help estimating the value of your items or determining how to claim your tax deduction when you file your taxes, these IRS publications can provide you with more detailed information:

• FAQ - Frequently Asked Questions about Charitable Contributions - a good place to start
• Publication 526, Charitable Contributions
• Publication 561, Determining the Value of Donated Property
• Form 8283 (PDF), Noncash Charitable Contributions
• Tax Topic 506, Contributions
• Form 1040, Schedule A (PDF), Itemized Deductions