Creative Monthly Calendars was originally published in 2003 and has been revised in 2011. It contains two calendar themes for each month of the year and each calendar theme offers literature suggestions, calendar patterns, full-color calendar samples, themed math activities and patterns, poetry, and lesson suggestions. There are over 200 pages of very easy to use calendar patterns and activities all of which are created using the original art of Stefani Sadler. The target instructional age is K-2 and the skills are all based on the math common core standards. Having two themes for each month allows teachers to make perfect instructional selections and works great for teachers who have combination grade level classes or loop with students. ABC Schoolhouse also offers a more primary calendar book for Pre-K entitled; Calendars for Young Learners.