HAMDEN — The Hamden CTWorks Center is offering a number of training and employment workshops this month at its 37 Marne Street office. Topics range from improving interviewing techniques to job-search strategies to drafting an effective résumé. The latter will be explored April 23 and 25. “Résumé Basics,” presented April 23  from 1 to 4 p.m., will be geared toward first-time résumé writers. “Advanced Résumé Writing” will be offered April 25 at the same time and will cover aspects of job hunting beyond the résumé, such as interviewing skills and networking. A workshop devoted specifically to networking, titled “The Networking Club,” will take place from 1 to 3 p.m. April 24. And for older workers, “Over 40 and Looking for Work” will be offered April 25 from 8:30 a.m. to 12:30 p.m. The session will cover challenges for older workers such as stereotyping that a job-seeker might encounter during the hiring process. For more information, including additional workshops being offered in April, call the Hamden CTWorks Center at 203-859-3200