For those seeking an introductory electronics book with numerous solved problems, Schaum's Outlines are highly recommended. Titles such as "Basic Electrical Engineering," "Basic Circuit Analysis," "Electric Circuits," and "Electronic Devices and Circuits" are noted for their extensive worked examples, which are beneficial for mastering circuit analysis concepts before exams. Key topics covered include transfer functions, bandwidth, noise, diodes, and transistors, among others. While the first two titles may have some redundancy, they provide additional practice problems. The Schaum's books are affordable, averaging around $15 each. However, for those considering a research career, "Microelectronic Circuits" by Sedra/Smith is suggested as a superior alternative for deeper understanding.