I bought from Lulu as well and the other one from Amazon although I could’ve got both from Amazon via Kindle/Kindle for PC app.
I recommend both.
There are two ebooks available on Amazon Kindle.
Three old books available:
If I recall correctly I enjoyed Learn RouerOS
Basics have not changed. Syntax has changed in some cases, but that matters only if you want to copy/paste. Use “TAB” to find the correct spelling of parameters. New features are in the manual
If you speak italian: Laboratori ed esercizi per MikroTik RouterOS
Link su Amazon: https://www.amazon.it/dp/1521899525/ref=sr_1_1?ie=UTF8&qid=1504185567&sr=8-1
Estratto del capitolo 4 sul routing: estratto del capitolo 4 – routing: https://www.zen.pn.it/wp-content/uploads/2017/08/estrattoCapitolo4Routing.pdf