Guidance on the 2010 ADA Standards for Accessible Design

The "ADA Guidance book" is easy to read and has graphics thatgives us the inside track. It is time efficiently spent.

This is not the reference you want. You want the actual ADA Standards... https://www.amazon.com/2010-ADA-Standards-Accessible-Design/dp/0615449328

I don't know why this book is offered for sale here. It is available for free from the United States government. It is on the ADA website as a pdf download, but if you want the hard copy book, all you have to do is call the phone number listed on the website and speak into the recording and the book will be mailed to you absolutely free. The actual 2010 ADA Standards is also available free from the same source.