One of the best books for the nuts and bolts of meditation focusing on the breath is "Mindfulness in Plain English" by a person whose name is, ironically, not at all plain English -
I also recommend my teacher's book "The Science of Enlightenment"
Culadasa (John Yates) has written what may be THE step-by-step guidebook for a traditional form of meditation know as absorption practice: "The Mind Illuminated"
"Zen Mind, Beginner's Mind", transcripts of talks by Soto Zen master Shunryu Suzuki, is deservedly a classic.
The ancient Chinese Taoist classic, "Tao Te Ching" has been translated into English (and many other languages) countless times, but my favorite translation is by Jonathan Starr. He published both a scholarly edition that maps out his translation compared to others and just his translation alone:
Dogen was not only the founder of the Soto school of Zen, but a prolific writer. Among other topics, he wrote a set of instructions for the "Tenzo", the cook in the Zen monastery. The Tenzo had a particularly challenging role, confronted daily with the very practical task of feeding the monks and doing so in a state of unfixated mind. In the book "Refining Your Life" (also sometimes titled "How to Cook Your Life"), Dogen's instructions to the Tenzo have been translated with commentary by Zen Master Kosho Uchiyama:
D. T. Suzuki was one of the first scholar/practitioner/English translator of Zen. He published numerous books and collections of essays. In "Zen and Japanese Culture", Suzuki explained the Zen influence in Tea Ceremony, Swordsmanship, Haiku, and other aspects of Japanese culture:
(There is a nice hardback edition almost always available used for very little money)
A reliable source for various talks and guided meditations is Sounds True: https://www.soundstrue.com/