Check out this new quiz question, submitted by none other than @Rick Lyons:

https://www.dsprelated.com/showquiz/10

So far, 0/5!

Idk if its only me but there is only one question, right?

Hi Marcinstein. Yes. Only one question.

Mr Rick Lyons

I've never thought that I'll speak to you even through online forum. I have no words to say how your book was, and still is, helpful for me during my studies and now, as a professional DSP engineer. Thank you for your contribution to digital world and for education of young generation. 

Thank you

Marcin

Hello Marcin. My my. Thank you. Your words are too kind! I'm happy that my DSP book has been of some value to you. Marcin, below are two web pages that might interest you. When you have nothing better to do, please visit them.

http://complextoreal.com/why-i-wrote-my-understand...

https://www.dsprelated.com/blogs.php?searchfor=err...

Thanks again & Best Regards,

[-Rick-]