This book is about quantum computing and quantum algorithms. The book starts with a chapter introducing the basic rules of quantum mechanics and how they can be used to build quantum circuits and perform computations.<div><br></div><div>Further, Grover's algorithm is presented for unstructured search discussing its consequences and applications.&nbsp;</div><div><br></div><div>Next, important techniques are discussed such as Quantum Fourier Transform and quantum phase estimation. Finally, Shor's algorithm for integer factorization is explained.</div><div><br></div><div>At last, quantum walks are explained in detail covering both the discrete and continuous time models,</div><div>and applications of this techniques are described for the design and analyses of quantum algorithms.</div>