Some days ago hackaday published this article about a book on designing electronic circuits written by Hunter Scott (the pdf version can be downloaded for free):
I haven’t been able to check it completely, but it seems a nice resource for beginners to learn to plan a circuit, chose its components, design the layout, etc.
As I haven’t seen any posts about it in the forum (if there’s any duplicate or this thread suits better another board, please tell me and I’ll delete or move the thread), I thought that it was worth to be shared as a complement to Dave pcb design guide for those who are starting