Does This 2015 Book Still Have Current Info (The Book on Rental Property Investing)

[Robert Ok]

Hi all, so for the book (full name below) which is designated as the BiggerPockets Rental Kit, 2, is the information it holds still current? I mean given that it's practically 9+ years old.  If the information is out of date is there a follow-up book you folks can recommend so I can make up for the gap of this original version?

Also, how come this 2015 version is designated Rental Kit, 2 while it's companion book written in 2020 is designated as BiggerPockets Rental Kit, 1? Please guys, pardon if this is a rookie question. I'm an REI newbie.

[Book Title As Listed On Amazon]

The Book on Rental Property Investing: How to Create Wealth With Intelligent Buy and Hold Real Estate Investing (BiggerPockets Rental Kit, 2) Paperback – Illustrated, October 28, 2015
by Brandon Turner (Author)