This is the only one I know of relevant to P. strains. Seems like a good resource for beginners. You can search and download it(and much more) for free at annas-archive.li I can't stop sharing this amazing resource for free books! Please pass it on and fk capitalism. Thank you.

Need help with contamination problems just let me know!

I’m really excited to be able to share the info I’ve gained over the last 40 years growing mushrooms. I started one of the worlds largest mushroom growing groups (Mushroom Growing in Facebook) and have been very limited there talking about my experiences growing psychedelic mushrooms. This is a place I can be open about the very path I’ve been on. Feel free to jump in with your story and any questions.