Chess Calculation Training series by Romain Edouard


I've got Volume 1 and I'm happy with it. So far I find the puzzles challenging and fun. Romain recommends doing a puzzle or 2 each day. But I've not found myself so disciplined
@kevinhaggins You might find this book review helpful
https://chessbookreviews.wordpress.com/2017/08/08/trend-hopping/