I will start by noting that the expression or the discipline called celestial mechanics has a somewhat long history behind it.

Celestial mechanics is usually considered to be the branch of astronomy dealing with the motions of objects in outer space, or of celestial bodies.

Modern analytic celestial mechanics started with Isaac Newton's Principia of 1687. The name "celestial mechanics" is more recent than that. Newton wrote that the field should be called "rational mechanics." The term "dynamics" came in a little later with Gottfried Leibniz, and over a century after Newton, Pierre-Simon Laplace introduced the term "celestial mechanics". In fact Laplace summarized and extended the work of Newton and other scientists and astronomers in his five-volume Mécanique Céleste (or Celestial Mechanics). Prior to Kepler there was little connection between exact, quantitative prediction of planetary positions, using geometrical or arithmetical techniques, and contemporary discussions of the physical causes of the planets' motion.

Celestial mechanics is,

in the broadest sense, the application of classical mechanics to the motion of celestial bodies acted on by any of several types of forces. By far the most important force experienced by these bodies, and much of the time the only important force, is that of their mutual gravitational attraction. But other forces can be important as well, such as atmospheric drag on artificial satellites, the pressure of radiation on dust particles, and even electromagnetic forces on dust particles if they are electrically charged and moving in a magnetic field.

The term celestial mechanics is sometimes assumed to refer only to the analysis developed for the motion of point mass particles moving under their mutual gravitational attractions, with emphasis on the general orbital motions of solar system bodies. The term astrodynamics is often used to refer to the celestial mechanics of artificial satellite motion. Dynamic astronomy is a much broader term, which, in addition to celestial mechanics and astrodynamics, is usually interpreted to include all aspects of celestial body motion (e.g., rotation, tidal evolution, mass and mass distribution determinations for stars and galaxies, fluid motions in nebulas, and so forth).

Source: Celestial mechanics | physics

Taking into account the clarifications above, here are some astronomy books useful and helpful for beginners:

The Astronomy Book: Big Ideas Simply Explained, by DK.

Astronomy: A Self-Teaching Guide, 8th edition, by Dinah L. Moché.

The History of Astronomy: A Very Short Introduction, by Michael Hoskin.

Below are links to several astronomy books for beginners:

Best Astronomy Books for Beginners - Telescope Observer

10 of the Best Beginner Astronomy Books for Future Astronomers

Astronomy Books For Beginners: 25 Reads to Start Learning about Space

One would also benefit from learning gradually about calculus from books or textbooks such as the following ones:

Schaum's Outline of Precalculus, 3rd Edition, by Fred Safier.

Schaum's Outline of Beginning Calculus, 3rd Edition, by
Elliott Mendelson.

Schaum's Outline of Calculus, 6th Edition, by Frank Ayres Jr and Elliott Mendelson.