Heres a tip on copyrights. Its free and easy. Print all your thumbs together, call each page gallery1, gallery2 etc. Place the pages in a large manilla envelope. Seal the envelope, take it to the post office. Have them put a label across the seal and post mark it. Mail it to yourself and never open it. If an issue arises and you need to prove your ownership, have a judge open the envelope. ONLY A JUDGE OR APPOINTED REPRESENTATIVE CAN OPEN THE ENVELOPE!!!!! This form of copyright is legal and binding, however, if you plan to sell the work, transfer the copyright, or have it published, you must do the full registration. You can still use the thumbs. The forms are free from the library of congress and each "Artistic Collection" costs $20 US to register. An "artistic collection" simple means whatever you call a collection, it can have as many images as you like.