K-12 Curriculum Development

When I meet educators at a state conference or I am introduced to an author, one of the questions I like to ask is, "What are you currently reading?"  When I meet Superintendents, College Professors, Classroom Teachers, Principals, and Educational Consultants they often cite the same authors.  The following list contains Ten Books Every Curriculum Developer Should Read. 

Please feel free to share your opinion regarding one or more of the books listed.

1.  Basic Principles of Curriculum and Instruction (1949)
     Ralph W. Tyler

2.  Understanding by Design (Expanded 2nd Edition - 2005)
     Grant Wiggins & Jay McTighe

3.  Deciding What to Teach and Test: Developing, Aligning, and Auditing the
     Curriculum (2000)
     Fenwick W. English

4.  Developing a Quality Curriculum (1994)
     Allan A. Glatthorn

5.  Mapping the Big Picture: Integrating Curriculum and Assessment K-12 (1997)
     Heidi Hayes Jacobs

6.  Concept-Based Curriculum and Instruction for the Thinking Classroom (2007)
     H. Lynn Erickson

7.  Common Formative Assessments: How to Connect Standards-Based
     Instruction and Assessment (2006) 
     Larry Ainsworth & Donald Viegut

8.  Unwrapping the Standards: A Simple Process to Make Standards Manageable
     (2003)
     Larry Ainsworth

9.  Power Standards: Identifying the Standards that Matter the Most (2003)
     Larry Ainsworth

10.  Schooling by Design: Mission, Action, and Achievement (2007)
       Grant Wiggins & Jay McTighe 

What are you currently reading?  Do you have a favorite curriculum and instruction book?  Please feel free to share books that have influenced your work with curriculum design, curriculum alignment and staff development.