confusing and directionless question. no offense mate. Ill try to answer though
1. r u reading about very basic electronic, then just do some testing project like ohm's law, diode test for p-n junction, transistor test etc etc.
2. if radio, u can try amateur radio's like AM or FM radio transmitter and receiver.
3. Also for basic to understand, u can try making simple filters like single pole RC filter; gradually make up with complex filter design.
4. u can google to find out circuits for above.
5. if learning about MCU, go for 8 bit MCU's like 8051, PIC etc. They are simple and fast to learn in my opinion.
6. if learning about linear IC's, use op-amps to design electronic circuit.
hope that helps.