The age ranges for puzzle books are subjective. There are many books for 6-6, 7-10, 8-11, 9-11, etc. In other words there is no exact boundary of these ranges. This is software does not produce puzzles for very young kids, say from age 6 and younger. This is suitable for 6 years and older. On the high end of ages, this software will not create puzzles sophisticated enough for those aged 12 and older. For the older kids and adults as well.