This offer letter and the documents referred to in it, including the Employee Invention Assignment and Confidentiality Agreement, constitute our entire agreement and understanding with respect to the terms and conditions of this offer and your employment with Zynga, and supersede any and all prior understandings and agreements, whether oral or written, between or among you and Zynga with respect to these subjects.  If any term in this offer letter is unenforceable in whole or in part, the remainder shall remain enforceable to the extent permitted by law.