Official rules:

Win a Parksify tote bag, stickers and a copy of Vital Little Plans: The Short Works of Jane Jacobs.

Here are the full rules:
Eligibility: This Campaign is open only to those who sign to receive email updates from Parksify and who are 18 years old as of the date of entry. The Campaign is only open to legal residents of the United States, and is void where prohibited by law. Current "Supporting Members" of Parksify are not eligible to participate in this Campaign. The Campaign is subject to all applicable federal, state, and local laws and regulations. Void where prohibited. 

Campaign Period: Entries will be accepted online starting on November 6 at 3:00PM PST and ending November 17 at 11:59PM PST. All online entries must be received by November 17 at 11:59pm PST. 

Prizes: The Winner(s) of the Campaign (the “Winner”) will receive at Parksify tote bag, Parksify sticker and a copy of the book Vital Little Plans: The Short Works of Jane Jacobs, approximate retail value of $48.00. Actual/appraised value may differ at time of prize award. The specifics of the prize shall be solely determined by Parksify. No cash or other prize substitution shall be permitted except at Parksify's discretion. The prize is nontransferable. Any and all prize-related expenses, including without limitation any and all federal, state, and/or local taxes, shall be the sole responsibility of Winner. No substitution of prize or transfer/assignment of prize to others or request for the cash equivalent by Winner is permitted.