[lentin]

I am the author of two books in Robotics. Here are the book websites

http://learn-robotics.com http://mastering-ros.com

The publisher was PACKT

Here are the details of PACKT perks which are given to me in a nutshell

Advance Royalty offered : $ 2.5 K to $ 3.5 K

Royalty share : 16 %

Writing time : 7 months -- 1.5 year

I am from India and i will say, if you can complete writing within less span of time, it will be great.

Note: Writing a book is boring and difficult task. It also consume high amount of time too. So be sure that, you can write book along with your job .