This book goes through trigonometry from the very basics to solving equations. This book covers most if not all the topics covered in a precalculus or math analysis course to help students understand trigonometry, preparing them for calculus and further mathematics courses. Topics include: Pythagorean Theorem, Measuring Angles, Degrees, Radians, Coterminal Angles, Reference Angles, Trigonometric Functions, Special Right Triangles, Using TI-84 calculator, Using Desmos, Trigonometry Word Problems, Unit Circle, Law of Sines, Law of Cosines, Area of Triangles, Graphing Trigonometric Functions, Inverse Trig Functions, Trigonometric Identities, Sum/Difference Identities, Double Angle and Half Angle Identities, Product Sum Identities, Solving Trigonometric Equations. Each sections contains several example problems worked out, plenty of practice problems, and solutions to all problems.