paperback binding books with hidden pictures

{"cid":"91220111","title":"Wire O Binding Coloring Book Printing Paperback Hardcover With Foil Cover","imgUrl":"https:\/\/img.chinax.com\/nimg\/dd\/43\/c4a0901fdaaec8e787e11a67c717-200x200-1.jpg","attrs":{"Price":"1-3 USD per copy","Minimum Order Quantity":"500 Pcs","Delivery Time":"2 weeks production","Place of Origin":"China","Certification":"FSC, DISNEY, BSCI, NBCU, SEDEX","Packaging Details":"packed in export carton with 16kg limiated","Payment Terms":"1\/3rd with order, 1\/3rd upon approval of proofs and 1\/3rd upon receipt of advance copies.","Supply Ability":"10000 copies per day","Type":"Coloring Books","Binding":"Paper Back, Wire-o Binding Etc","Number of Pages":"160, 200, 240pp Etc","Cover Type":"Paperback\/Hardcover","Paper stock":"Uncoated Woodfree Paper.","Age Range":"Children And Adult","Cover treatment":"Spot UV, Foil Stamping, Embossing, Debossing","Inside printing":"1c Black Or 4c Process"}}

{"cid":"91223930","title":"Paperback Custom Printing Books Kindergarten Handwriting Book Offset Printing For Publishers","imgUrl":"https:\/\/img.chinax.com\/nimg\/3d\/7f\/716f6da4be10c6a38fad79e27235-200x200-1.jpg","attrs":{"Price":"0.13USD-0.3USD","Brand Name":"ODM&OEM","Model Number":"Softcover Brochure Printing","Minimum Order Quantity":"500 pieces","Delivery Time":"10-12 work days","Place of Origin":"Guangdong, China","Payment Terms":"T\/T,L\/C","Supply Ability":"100000 Pieces per day","Packaging Details":"Standard Exported Carton","Paper Type":"Art Paper, Cardboard, Duplex Board, Fancy Paper, Kraft Paper, Offset paper","Product Type":"Book","Surface Finish":"Film Lamination","Item":"Softcover Brochure Printing","Binding":"Perfect Binding, Perfect Binding","Material":"Coated Paper, Offset Paper","Color":"4c+4c CMYK Pantone","Sample Time":"2-4 DAYS"}}