In Get Ready for Pre-K Skills Workbook: Sorting, children preparing to enter preschool can practice the key learning concept of sorting and grouping in a more in-depth way. The bright colorful pages with a delightful blend of photographs and illustrations make these workbooks some of the most eye-catching and engaging available for this age group. And two pages of stickers will help reinforce the learning and keep little ones excited about entering preschool. PreK-K. Paperback.