"Statistical Rethinking" by Richard McElreath and "Doing Bayesian Analysis" by John K. Kruschke are really great entry points. Any book by Andrew Gelman is a reference but maybe better for more advanced readers in my opinion. Hope this helps!
I second the recommendation to read through "Statistical rethinking" as translated by Solomon Kurtz (https://bookdown.org/content/4857/). It's free and presents what is, in my opînion, the most user friendly R package to conduct Bayesian regressions (i.e., brms).
P. M. Lee's "Bayesian Statistics: An Introduction" will be helpful to transform classical statistical concepts into a Bayesian framework. It contains many more examples and exercises fr the learners.
"Statistical Rethinking" by Richard McElreath, "Bayesian Statistical Methods" by Brian J. Reich and Sujit K. Ghosh, and "Doing Bayesian Analysis" by John K. Kruschke are the best Introduction books I have found.