Book recommendations?

My birthday is coming up and looking for books on meditation/mindfulness. Been meditating on and off for some time but now I’m really starting to take it seriously and seeing some changes in perception and behaviour. What books would you recommend for me to read in this stage?

Waking up by Sam Harris, mindfulness in plain English by Bhante Henepola Gunaratana and The Mind Illuminated by Culadasa have caught my eye so far.