How to get every Network Diagram question right on the PMP Exam Book By Aileen Ellis Network diagrams including float, free float, project float, leads and lags Financial based questions including IRR, ROI, etc. There is one thing all of these areas have in common and it is math - Aileen has decided to create mini-books in each of these areas so that students can gain both the knowledge and the confidence to get these questions right Good Condition - no rips, tears, writing, or stains ISBN-10 1503118053 ISBN-13 9781503118058Regarding Preowned Clothing Only - All items have been washed/cleaned per manufacturers and/or standards. It is always best practice to wash your item when you receive it due to allergies to products others may use. Thank you.